City profile · Illinois · Census ACS 2023

Millbrook, IL

Millbrook's Census ACS profile: residents, income, housing, and the joined public-record layers available for this place.

298
Residents
$128,750
Median income
$350,000
Median home
$1,063
Median rent (state)
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Side-by-side metrics and state or size-class ranks use the same Census and FBI fields shown on this profile. Results stay in the URL so you can bookmark or share them.

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See how it ranks

State rank, size-class rank, and four peer cities for Millbrook.

Place dossier plate

Sheet IL-MILLBROOK-IL · Millbrook, IL 298 pop · income 90th pct

POP-VILLAGE · INC-TOP · COL-PAR · SAFE-UNK · RANK-TOP · PHOTO-FINISH · HOME-MID · BOOK-UNK

  • POP-VILLAGE 298
  • INC-TOP $128,750
  • COL-PAR 100.0
  • SAFE-UNK Safety pending
  • RANK-TOP 90th
  • PHOTO-FINISH ≈ Healy
  • HOME-MID $350,000
  • BOOK-UNK Tracts pending

Nearest income peer: Healy, AK (+ $0 income $)

Instrument codes from this place’s ACS population and household income, BEA state COL, FBI safety, national income percentile, photo-finish peer city, home-value band, and matched Census-tract book - not a moving recommendation.

Income neighbourhood around Millbrook

Lowest/highest poles plus peers nearest Millbrook on median household income. Full ladder: /browse and /rankings.

median HH income

What this shows Neighbourhood peers only - not a full nationwide city board. Open a near peer when the gap is small; open the poles when the spread is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-08

Compare beyond this state

Nationwide peers by population, income

Out-of-state nearest neighbors for Millbrook on ACS population and median household income . Link sets are deduped so each column is a distinct comparison path, not a forecast that peers share a labor market or climate.

Similar population

Nearest out-of-state cities by ACS population. This city: 298.

4 peers

Similar household income

Nearest out-of-state cities by ACS median household income. This city: $128,750. Population peers are excluded.

4 peers

Millbrook - the verdict

Out of every US city with 1,000+ residents, Millbrook places in the 90th percentile for household income. Source: Census ACS.

90th
percentile, household income
72nd
percentile, home value
18th
percentile, median rent
📝 How we sourced this

Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.

Data Snapshot: Millbrook, IL

Millbrook is a small town in Illinois, home to 298 residents per U.S. Census Bureau ACS 2023 estimates. Median household income here is $128,750 per year, placing it in the top quartile of U.S. cities for household income, with a poverty rate of 6.3%. Home values in Millbrook run a median of $350,000, and the median resident age is 38.9 years. 42.1% of adults here have a bachelor's degree or higher; 68.7% of working-age residents are in the labor force.

Illinois tracks close to the national cost-of-living baseline: BEA Regional Price Parities 2024 puts Illinois at 100.0 on a 100-equals-national-average scale (Near Average). Statewide, HUD pegs Fair Market Rent for a two-bedroom unit at $1,063 monthly. EIA 2023 residential energy data puts Illinois's average monthly utility costs around $240 (state average). Natural-hazard exposure scores 54.5 out of 100 on FEMA's National Risk Index (Low).

A decision-led reading path

Useful questions to ask of Millbrook's data

How this reading path is ordered

This is not a composite city score. It is a city-specific route through the available public records, ordered for this profile so the page starts with questions the joined data can actually answer. The route here runs from population change to work and mobility to housing and income to comparison shortlist; another city can have a different sequence or fewer supported layers because the source joins are not uniform.

For Millbrook, city-specific coverage includes commute-mode shares, annual population history. No matched row is reported here for FBI reported-crime rates, matched public-school count, local building permits, within-city Census tract profiles; the page leaves those layers out instead of substituting a statewide or national value.

Question 1

Is Millbrook growing, shrinking, or holding steady?

Census PEP estimates show the population grew by +7 residents from 2020 to 2025, a +2.5% change. No comparable local building-permit series is available here, so population change should not be read as a housing-supply measure. PEP and ACS are different Census series, so the trend is kept separate from the headline ACS population.

Recent estimates point upward. Growth can increase housing demand and service needs, but the permit record must move in the same direction before calling it a supply response; the two series measure different things.

See the national growth ranking →

Question 2

What does the journey to work look like in Millbrook?

Driving alone is the largest reported mode at 92.4%. A reliable mean commute time is not available for this row, so the mode shares carry the comparison.

Mode share answers how workers usually travel; it does not measure congestion, reliability, distance to a particular job, or the quality of transit service. The profile is strongly car-oriented, so a relocation comparison should put trip distance, vehicle access, and household fuel costs ahead of a citywide commute average. The same-state peer links offer a more relevant benchmark than a national label.

Compare commute patterns →

3. Housing and income

How far does income reach against housing in Millbrook?

This is a citywide price-to-income reference, not a mortgage-affordability test; it does not include interest rates, taxes, insurance, household size, or an individual buyer's down payment. Income and home value move within the same broad scale here. The useful next check is not a generic affordability label, but whether similar-size cities offer a materially different income, housing, or commute trade-off.

The home-value-to-income reference sits in a middle range: the ACS median home value is 2.7 times median household income. The ACS poverty estimate is 6.3%, which keeps the citywide median from describing every household.

Compare the housing trade-off →

4. Comparison shortlist

Which cities make useful reference points for Millbrook?

Use the in-state set to hold state policy and broad price conditions more nearly constant. Use the nationwide size set to ask whether cities with a similar resident count produce different housing, income, or commute outcomes. The income set is a third lens, deliberately separate from population matching.

Within Illinois, the closest population matches are Biggsville (298 residents, $75,417 income); Chestnut (297 residents, $51,875 income); McCook (299 residents, $74,464 income). Outside the state, the closest population matches in this dataset are Banks, AL (298 residents); Richvale, CA (298 residents); Avondale, CO (298 residents). A third, income-matched reference set of 6 out-of-state cities sits in the income neighbourhood chart near the Place Dossier plate. These are mechanical peer sets, not claims that the places share a labor market, climate, culture, or metro context.

Open a side-by-side comparison →

Population

298 residents

Micro place (under 10k)

Median Household Income

$128,750 /yr

High income · poverty 6.3% (Below-median poverty)

Cost of Living Index (state)

100.0 (US=100)

Above-average cost · BEA RPP 2024, Illinois average

City profile score · Millbrook, IL

67/100

4 published dimensions · ACS/FBI 2023

Comparative score against U.S. cities with population of 1,000 or more on Census ACS medians (income, poverty, bachelor's share, cost of living) and FBI UCR violent-crime rates when published. Higher means a stronger standing on those published figures, not a livability rating, not a recommendation to move, buy, or pick a "best" city. Missing inputs drop out and redistribute weight. How it is calculated.

Household income A+
$128,750

Median household income vs U.S. cities (pop ≥1,000); ACS.

Bachelor's+ share B+
42.1%

Adults with a bachelor's degree or higher; ACS.

Poverty rate C
6.3%

Share of residents below the poverty line; lower scores better on this axis.

Cost of living D
100.0 index

BEA state Regional Price Parities index (100 ≈ national average); lower is stronger on this axis. Same value for every city in the state.

Violent crime N/A
N/A

No FBI UCR violent-crime rate for this place (coverage is incomplete).

Millbrook profile (scored ACS/FBI dimensions) 4-axis radar comparing 1 series across Household income, Bachelor's+ share, Poverty rate, Cost of living. Household incomeBachelor's+ sharePoverty rateCost of living 67 B-
Millbrook profile (scored ACS/FBI dimensions)
Read the chart values
  • Household income: 90/100 (A+) · $128,750
  • Bachelor's+ share: 77/100 (B+) · 42.1%
  • Poverty rate: 57/100 (C) · 6.3%
  • Cost of living: 40/100 (D) · 100.0 index

How does Millbrook compare to other US cities?

Here's how Millbrook stacks up against the full field of US cities (population 1,000+), computed live from Census and FBI data.

Household income 90% higher than other cities
Home value 72% pricier than other cities
Median rent 18% pricier than other cities

"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.

How we calculate these percentiles & ranks

Each percentile compares Millbrook against every qualifying US city; each in-state rank narrows that to Illinois only. Full formula and direction notes: methodology.

Illinois-relative analysis

Median Gross Rent places Millbrook near the bottom of Illinois's cities

Among the 1,336 Illinois cities PlainCities tracks with reported median gross rent data, Millbrook ranks #1 - the 0th percentile within the state. This is a different, narrower cut than the nationwide percentiles above: it compares Millbrook only against its own state's cities, not the full US field.

Median Household Income
#84 of 1,311
94th percentile in Illinois
Median Gross Rent
#1 of 1,336
0th percentile in Illinois
Median Home Value
#98 of 1,315
92nd percentile in Illinois
Poverty Rate
#738 of 1,335
44th percentile in Illinois
Bachelor's Degree or Higher
#166 of 1,336
88th percentile in Illinois
How in-state ranks are ordered

Ranked by raw value (highest first); a higher rank is not automatically "better" for every measure, see each metric's own context above. This is a comparison within Illinois only, not a livability score. See the methodology for the source and calculation.

90thIncome percentile
Gauge source note

90th percentile nationally for median household income. Source: Census ACS 2023 / FBI UCR 2023.

How Millbrook's home value compares nationally

Median home value vs. every US city (population 1,000+)

$350,000 28th percentile more affordable than 28% of 15,600 US cities

Show national distribution $0–$25,000: 5 US cities (0%). Below this entry. $25,000–$50,000: 54 US cities (0%). Below this entry. $50,000–$75,000: 352 US cities (2%). Below this entry. $75,000–$100,000: 1,086 US cities (7%). Below this entry. $100,000–$125,000: 1,516 US cities (10%). Below this entry. $125,000–$150,000: 1,170 US cities (8%). Below this entry. $150,000–$175,000: 1,278 US cities (8%). Below this entry. $175,000–$200,000: 1,229 US cities (8%). Below this entry. $200,000–$225,000: 1,035 US cities (7%). Below this entry. $225,000–$250,000: 976 US cities (6%). Below this entry. $250,000–$275,000: 754 US cities (5%). Below this entry. $275,000–$300,000: 712 US cities (5%). Below this entry. $300,000–$325,000: 521 US cities (3%). Below this entry. $325,000–$350,000: 526 US cities (3%). Below this entry. $350,000–$375,000: 465 US cities (3%). This entry sits in this band. $375,000–$400,000: 393 US cities (3%). Above this entry. $400,000–$425,000: 317 US cities (2%). Above this entry. $425,000–$450,000: 300 US cities (2%). Above this entry. $450,000–$475,000: 307 US cities (2%). Above this entry. $475,000–$500,000: 250 US cities (2%). Above this entry. $500,000–$525,000: 160 US cities (1%). Above this entry. $525,000–$550,000: 156 US cities (1%). Above this entry. $550,000–$575,000: 172 US cities (1%). Above this entry. $575,000–$600,000: 172 US cities (1%). Above this entry. $600,000–$625,000: 163 US cities (1%). Above this entry. $625,000–$650,000: 167 US cities (1%). Above this entry. $650,000–$675,000: 135 US cities (1%). Above this entry. $675,000–$700,000: 101 US cities (1%). Above this entry. $700,000–$725,000: 95 US cities (1%). Above this entry. $725,000–$750,000: 71 US cities (0%). Above this entry. $750,000–$775,000: 65 US cities (0%). Above this entry. $775,000–$800,000: 70 US cities (0%). Above this entry. $800,000–$825,000: 57 US cities (0%). Above this entry. $825,000–$850,000: 67 US cities (0%). Above this entry. $850,000–$875,000: 60 US cities (0%). Above this entry. $875,000–$900,000: 58 US cities (0%). Above this entry. $900,000–$925,000: 47 US cities (0%). Above this entry. $925,000–$950,000: 37 US cities (0%). Above this entry. $950,000–$975,000: 31 US cities (0%). Above this entry. $975,000–$1,000,000: 470 US cities (3%). Above this entry. $1,000,000–$1,025,000: 0 US cities (0%). Above this entry. Millbrook $0 $1,025,000 every US city, bucketed by value

Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Millbrook's home-value-to-income ratio: 2.7×

ACS median home value divided by median household income.

Band
affordable
< 3.0×
National rank
#5,120 of 15,516
More affordable than 67% of tracked cities (pop. 1,000+)
Size class
#4,485 of 11,323
Micro cities (under 10,000)

At 2.7×, Millbrook sits in the affordable band: national rank #5,120 of 15,516 and #4,485 of 11,323micro cities (under 10,000). The multiple is comparatively compact among tracked cities, but a low ratio can still coexist with slow demand or household-level hardship.

How this ratio is calculated

Ratio = Census ACS 2023 median home value ÷ median household income for cities with both fields and population ≥ 1,000. Rank 1 = lowest ratio (most compact). Bands match the fleet affordability thresholds used on guides (<3.0 / 3.0–5.0 / >5.0). This is not a mortgage payment estimate and does not include rates, taxes, insurance, or down payment.

Income distribution context

$128,750 Millbrook, IL median household income (Census ACS)

Show U.S. national quintile / Lorenz context Household income distribution - Millbrook, IL Millbrook, IL's median household income ($128,750) against the U.S. national quintile-share pattern. The Lorenz curve and quintile bars are national context, not Millbrook, IL-specific shares. $ Household Income Distribution Millbrook, IL median $128,750/yr, vs. U.S. national quintile pattern QUINTILE SHARE OF AGGREGATE INCOME Lowest 20% 3.4% Second 20% 9.2% Middle 20% 15.1% Fourth 20% 23.2% Top 20% 49.1% LORENZ CURVE cumulative income vs. population 100% 0% 100% pop. 0%
Millbrook, IL median household income (Census ACS 5-year) with U.S. national quintile shares for context. Diagonal = equality; the curve is national, not computed for Millbrook, IL.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 42.1%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 6.3%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 68.7%

Census ACS S2301, share of working-age residents in the labor force

Population
298
Median Income
$128,750
Median Home Value
$350,000
Median Age
38.9
Poverty Rate
6.3%
Labor force participation
68.7%
Bachelor's Degree+
42.1%

Population Change

PEP vintage

Annual U.S. Census Bureau Population Estimates Program (PEP) estimates, 2020–2025

See the fastest-growing cities →
280 residents285 residents290 residents295 residents 202020212022202320242025 284 residents 291 residents ▲ +2.5%
Millbrook's Census PEP population estimates, 2020–2025.
Read the chart as text
Period Population
2020 284 residents
2021 287 residents
2022 288 residents
2023 288 residents
2024 288 residents
2025 291 residents

Commute Patterns

Commute source

How workers travel to work, Census ACS 2023

Drive Alone
92.4%
Carpool
2.8%
Public Transit
0.0%
Walk
2.1%
Work from Home
2.1%
Other
0.6%

Based on 144 workers 16 and over.

Monthly Utility Costs

Illinois statewide monthly utility average (EIA 2023): $240

EIA 2023 residential energy data puts average monthly utilities across Illinois at $240 (electricity about $100 , water and sewer about $50 ).

These are Illinois statewide averages, not a meter reading for Millbrook. Actual bills vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.

Living Costs & Risk

Illinois's BEA cost-of-living index is 100.0 (Near Average; US average = 100, RPP 2024). HUD Fair Market Rent for a typical two-bedroom in the county around Millbrook is $1,063/mo. FEMA's National Risk Index, averaged to Illinois statewide on PlainCities, rates natural-hazard exposure at 54.5 / 100 (Low).

Cost/risk geography note

Cost of living is a Illinois statewide BEA average; rent is a county-level HUD Fair Market Rent for the county Millbrook sits in; the FEMA hazard score shown here is a statewide average of county NRI inputs, not a parcel-level reading.

How Millbrook compares to similar-size Illinois cities

Same-state peer method

Closest same-state population matches, not geographic neighbors. Population + median household income come from Census Bureau ACS 5-year B01001 and B19013.

City Population Median Household Income
Millbrook (this city) 298 $128,750
Biggsville 298 $75,417
Chestnut 297 $51,875
McCook 299 $74,464
Primary sources on this page

Source: U.S. Census Bureau ACS 5-Year 2023, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.

Read our methodology - how this data is sourced, computed, and verified.

Citation & verification links Data sourced from the U.S. Census Bureau. See our methodology for details. Retrieved and formatted by PlainCities

Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES. Joins use OMB Bulletin 23-01 / FIPS keys.

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Estimate caveats

ACS and UCR figures are citywide estimates with vintage lags; they do not replace a local visit, school visit, or insurance quote.

Editorial standards, provenance, and how to cite this page

Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.

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