City profile · Illinois · Census ACS 2023

Flossmoor, IL

Population, income, housing, safety, climate and schools for Flossmoor - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.

9,666
Residents
$137,768
Median income
$309,100
Median home
$1,781
Median rent (state)

Flossmoor - the verdict

Nationally, Flossmoor sits in the 92nd percentile for household income and the 18th percentile for safety among US cities with a population of 1,000 or more. Source: Census ACS + FBI UCR.

92nd
percentile, household income
66th
percentile, home value
72nd
percentile, median rent
18th
percentile, safety
📝 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: Flossmoor, IL

Illinois's Flossmoor is a small town, with 9,666 residents per the latest Census Bureau ACS figures. Flossmoor households earn a median of $137,768 annually, placing it in the top quartile of U.S. cities for household income, with a poverty rate of 1.1%. Home values in Flossmoor run a median of $309,100, and the median resident age is 44.2 years. 67.0% of adults here have a bachelor's degree or higher; 59.2% of working-age residents are in the labor force.

The Census Building Permit Survey recorded 1 residential units authorized here in 2024 (Low Activity). Flossmoor's reported crime rate runs above the national norm: FBI UCR reporting places total crime at 2818.3 incidents per 100,000 residents, above the national average (voluntary agency reporting, reflects reporting activity, not a definitive danger score).

Illinois tracks close to the national cost-of-living baseline: the state registers 100.0 on a 100-equals-national-average index (Near Average) per BEA Regional Price Parities 2024. HUD Fair Market Rent for a typical two-bedroom in this state is $1,781 per month. EIA 2023 residential energy data puts Illinois's average monthly utility costs around $240 (state average). Natural-hazard exposure scores 97.3 out of 100 on FEMA's National Risk Index (Very High).

Population

9,666 residents

Census ACS 2023 - Illinois

Median Household Income

$137,768 /yr

Poverty 1.1%

Cost of Living Index (state)

100.0 (US=100)

Near Average - BEA RPP 2024, Illinois average

How does Flossmoor compare to other US cities?

Where Flossmoor sits among all US cities (population 1,000+) on each measure, computed live from Census and FBI data.

Household income 92% higher than other cities
Home value 66% pricier than other cities
Median rent 72% pricier than other cities
Safety 18% safer than other cities

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

Zoom in to just Illinois and the picture shifts: Flossmoor ranks #405 of 455 Illinois cities by lowest crime rate, a different read than the national percentile above.

How we calculate these percentiles & ranks

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

Illinois-relative analysis

Bachelor's Degree or Higher is Flossmoor's strongest outlier among Illinois cities

Among the 1,336 Illinois cities PlainCities tracks with reported bachelor's degree or higher data, Flossmoor ranks #46 - the 97th percentile within the state. This is a different, narrower cut than the nationwide percentiles above: it compares Flossmoor only against its own state's cities, not the full US field.

Median Household Income
#68 of 1,311
95th percentile in Illinois
Median Gross Rent
#17 of 1,336
77th percentile in Illinois
Median Home Value
#142 of 1,315
89th percentile in Illinois
Poverty Rate
#1,202 of 1,335
10th percentile in Illinois
Bachelor's Degree or Higher
#46 of 1,336
97th percentile in Illinois

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.

92ndIncome percentile
18thSafety percentile

92nd percentile nationally for median household income · 18th percentile for safety (lower crime rate). Source: Census ACS 2023 / FBI UCR 2023.

Flossmoor's profile vs. every US city

Income, affordability, and safety percentile

Flossmoor's percentile rank on 3 favorable-direction measures (income, affordability, safety) vs. every tracked US city -- higher on every axis is more favorable. Not a composite quality score, just the arithmetic mean of the axes shown. 3-axis radar comparing 1 series across Income, Affordability, Safety. IncomeAffordabilitySafety 47 Avg. percentile National median
Flossmoor's percentile rank on 3 favorable-direction measures (income, affordability, safety) vs. every tracked US city -- higher on every axis is more favorable. Not a composite quality score, just the arithmetic mean of the axes shown.

How Flossmoor's home value compares nationally

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

$309,100 34th percentile more affordable than 34% of 15,600 US cities

$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%). This entry sits in this band. $325,000–$350,000: 526 US cities (3%). Above this entry. $350,000–$375,000: 465 US cities (3%). Above this entry. $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. Flossmoor $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

Income distribution context

Household income distribution - Flossmoor, IL Flossmoor, IL's reported median household income shown against the U.S. national quintile-share pattern (not Flossmoor, IL-specific quintile data). The Lorenz curve traces the national cumulative income share against cumulative population share, perfect equality is the diagonal; observed inequality bows below. $ Household Income Distribution Flossmoor, IL median $137,768/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%
Flossmoor, IL's median household income (Census ACS 5-year estimate) plotted against the U.S. national income-quintile distribution pattern for context; the quintile shares and Lorenz curve are national figures, not computed specifically for Flossmoor, IL. Diagonal = perfect equality.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 67.0%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 1.1%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 59.2%

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

Population
9,666
Median Income
$137,768
Median Home Value
$309,100
Median Age
44.2
Poverty Rate
1.1%
Labor force participation
59.2%
Bachelor's Degree+
67.0%

Safety & Crime

Total Crime Rate
2818.3
per 100,000 residents
Violent Crime
65.8
per 100,000 residents
Property Crime
2752.5
per 100,000 residents

Reflects incidents reported to the FBI's Uniform Crime Reporting program — agency participation is voluntary and reporting completeness varies by jurisdiction and year, so this reflects reporting activity, not a definitive danger score. Not adjusted for tourism, commuter, or daytime population.

Schools

Total Schools
5
Public schools in this city

Population Change

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

See the fastest-growing cities →
9,200 residents9,300 residents9,400 residents9,500 residents9,600 residents9,700 residents 202020212022202320242025 9,646 residents 9,358 residents ▼ -3.0%
Flossmoor's Census PEP population estimates, 2020–2025.

Housing Supply

Census Bureau Building Permits Survey (BPS) - annual residential permits authorized

🏗️ Low Activity
Total Permits (2024)
1
housing units authorized
Single-Family
1
detached homes
Multifamily
0
apartments & condos
Supply Intensity
0.1
permits per 1,000 residents

5-Year Permit Trend (2019–2024)

Year Total
2019 0
2020 1
2021 0
2022 3
2023 0
2024 1

Commute Patterns

How workers travel to work, Census ACS 2023

Drive Alone
45.4%
Carpool
6.0%
Public Transit
14.5%
Walk
0.4%
Work from Home
33.7%

Based on 4,546 workers 16 and over.

Monthly Utility Costs

State-average estimates for Illinois - EIA 2023 residential energy data

Electricity
$100
avg/month
Natural Gas
$90
avg/month
Water & Sewer
$50
avg/month
Total Utilities
$240
estimated/month

Estimates reflect Illinois state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.

Living Costs & Risk

Cost of living is a Illinois state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county Flossmoor sits in

Cost of Living Index
100.0
Near Average
US average = 100 · BEA RPP 2024
Typical 2-BR Rent
$1,781/mo
HUD Fair Market Rent
County-level FMR estimate
Natural Hazard Risk
97.3 / 100
Very High
FEMA NRI composite score (county)

Similar Cities in Illinois

Sauk Village
9,724 people
Mahomet
9,755 people
Frankfort Square
9,777 people
Itasca
9,525 people
Rochelle
9,477 people
LaSalle
9,471 people

Cities of a Similar Size Nationwide

Population-matched peers from other states, closest to Flossmoor's 9,666 residents (Census ACS 5-Year 2023).

Picture Rocks, AZ
9,665 people
Canal Winchester, OH
9,659 people
Hillsborough, NC
9,656 people
Brewer, ME
9,654 people
Jennings, LA
9,679 people
Canonsburg, PA
9,682 people

Cities with a Similar Household Income Nationwide

Median-household-income-matched peers from other states, closest to Flossmoor's $137,768 (Census ACS 5-Year 2023, table B19013).

Arnold, MD
$137,799 median income
Helena Valley Northeast, MT
$137,724 median income
Red Oaks Mill, NY
$137,813 median income
Dash Point, WA
$137,721 median income
Edgewater, NJ
$137,847 median income
Schnecksville, PA
$137,684 median income

Race & Ethnicity Composition

Race and ethnicity - Flossmoor, IL Race categories sum to one hundred percent per Census methodology. Hispanic or Latino is shown separately as an ethnicity overlay; it cuts across all race categories per OMB Directive 15. Race & Ethnicity Composition Flossmoor, IL - Census ACS, OMB race + ethnicity categories RACE, sums to 100% 27.7% 63.2% ETHNICITY, Hispanic or Latino (any race) 4.9% White 27.7% Black or African American 63.2% Asian 1.7% American Indian 0.0% Native Hawaiian 0.0% Some other race 3.1% Two or more races 4.3% Per OMB Directive 15: Hispanic/Latino ethnicity is reported separately from the race categories.
Race categories sum to 100%. Hispanic or Latino ethnicity is reported separately and cuts across race per Census/OMB methodology.

City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.

How Flossmoor compares to nearby Illinois cities

Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).

City Population Median Household Income
Flossmoor (this city) 9,666 $137,768
Sauk Village 9,724 $56,946
Mahomet 9,755 $114,904
Frankfort Square 9,777 $126,953
Census ACS 5-year FIPS IL FBI UCR NCES CCD Census BPS 2024 OMB Bulletin 23-01

What do people ask about Flossmoor, IL?

What is the population of Flossmoor, IL? +

9,666 people live in Flossmoor, IL according to U.S. Census Bureau ACS 2023 estimates.

What is the median household income in Flossmoor, IL? +

Median annual household income in Flossmoor runs $137,768, based on Census ACS 2023 data.

What is the cost of living in Flossmoor? +

BEA does not publish a city-level cost-of-living figure for Flossmoor; the closest available measure is the Illinois state average, a cost of living index of 100.0 (U.S. average = 100), rated "Near Average" based on BEA Regional Price Parities 2024 data. Costs within Illinois vary by metro area.

Is Flossmoor, IL safe? +

Flossmoor has a total crime rate of 2818.3 per 100,000 residents, which is above the national average. This reflects incidents reported to the FBI UCR program, not a definitive safety score -- agency reporting is voluntary and completeness varies by jurisdiction.

What is the median home value in Flossmoor, IL? +

Homes in Flossmoor carry a median value of $309,100, according to Census ACS 2023 estimates.

Source: U.S. Census Bureau ACS 5-Year 2023, FBI UCR, NCES CCD, Census BPS 2024, 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.

Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.

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

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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.