City profile · Illinois · Census ACS 2023

Mark, IL

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

522
Residents
$79,911
Median income
$154,800
Median home
$937
Median rent (state)

Mark - the verdict

Mark ranks in the 61st percentile for household income nationally, out of every US city with at least 1,000 residents. Source: Census ACS.

61st
percentile, household income
28th
percentile, home value
9th
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: Mark, IL

Mark is a small town in Illinois, home to 522 residents per U.S. Census Bureau ACS 2023 estimates. The typical household in Mark brings in $79,911 a year, above the median for U.S. cities on this measure, with a poverty rate of 5.3%. Mark's housing stock carries a median value of $154,800, and the median resident age is 45.0 years. About 22.7% of adults hold a bachelor's degree or higher, while 64.7% of working-age residents are in the labor force.

Housing supply pressure shows in Census Building Permit Survey data: 0 residential units were authorized in 2024 (No Permits).

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 $937 per month. Monthly utility costs average around $240 across Illinois, per EIA 2023 residential energy estimates. FEMA's National Risk Index rates natural-hazard exposure at 9.2 out of 100 (Very Low).

Population

522 residents

Census ACS 2023 - Illinois

Median Household Income

$79,911 /yr

Poverty 5.3%

Cost of Living Index (state)

100.0 (US=100)

Near Average - BEA RPP 2024, Illinois average

How does Mark compare to other US cities?

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

Household income 61% higher than other cities
Home value 28% pricier than other cities
Median rent 9% 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 Mark 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 sits close to the middle of Illinois's city distribution

Among the 1,336 Illinois cities PlainCities tracks with reported median gross rent data, Mark ranks #892 - the 31st percentile within the state. This is a different, narrower cut than the nationwide percentiles above: it compares Mark only against its own state's cities, not the full US field.

Median Household Income
#405 of 1,311
69th percentile in Illinois
Median Gross Rent
#892 of 1,336
31st percentile in Illinois
Median Home Value
#475 of 1,315
64th percentile in Illinois
Poverty Rate
#811 of 1,335
38th percentile in Illinois
Bachelor's Degree or Higher
#476 of 1,336
64th 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.

61stIncome percentile

61st percentile nationally for median household income. Source: Census ACS 2023 / FBI UCR 2023.

How Mark's home value compares nationally

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

$154,800 Among the most affordable more affordable than 72% 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%). This entry sits in this band. $175,000–$200,000: 1,229 US cities (8%). Above this entry. $200,000–$225,000: 1,035 US cities (7%). Above this entry. $225,000–$250,000: 976 US cities (6%). Above this entry. $250,000–$275,000: 754 US cities (5%). Above this entry. $275,000–$300,000: 712 US cities (5%). Above this entry. $300,000–$325,000: 521 US cities (3%). Above this entry. $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. Mark $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 - Mark, IL Mark, IL's reported median household income shown against the U.S. national quintile-share pattern (not Mark, 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 Mark, IL median $79,911/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%
Mark, 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 Mark, IL. Diagonal = perfect equality.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 22.7%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 5.3%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 64.7%

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

Population
522
Median Income
$79,911
Median Home Value
$154,800
Median Age
45.0
Poverty Rate
5.3%
Labor force participation
64.7%
Bachelor's Degree+
22.7%

Population Change

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

See the fastest-growing cities →
500 residents505 residents510 residents515 residents520 residents 202020212022202320242025 516 residents 505 residents ▼ -2.1%
Mark's Census PEP population estimates, 2020–2025.

Housing Supply

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

Total Permits (2024)
0
housing units authorized
Single-Family
0
detached homes
Multifamily
0
apartments & condos

5-Year Permit Trend (2019–2024)

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

Commute Patterns

How workers travel to work, Census ACS 2023

Drive Alone
85.3%
Carpool
6.2%
Public Transit
0.0%
Walk
0.0%
Work from Home
5.4%
Other
3.1%

Based on 258 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 Mark sits in

Cost of Living Index
100.0
Near Average
US average = 100 · BEA RPP 2024
Typical 2-BR Rent
$937/mo
HUD Fair Market Rent
County-level FMR estimate
Natural Hazard Risk
9.2 / 100
Very Low
FEMA NRI composite score (county)

Similar Cities in Illinois

Keithsburg
520 people
Palmyra
524 people
Altona
519 people
Spring Bay
519 people
New Haven
528 people
Pittsburg
515 people

Cities of a Similar Size Nationwide

Population-matched peers from other states, closest to Mark's 522 residents (Census ACS 5-Year 2023).

Pioneer, LA
522 people
Butlertown, MD
522 people
Sacred Heart, MN
522 people
Wrightstown, NJ
522 people
Coopers Plains, NY
522 people
Mowrystown, OH
522 people

Cities with a Similar Household Income Nationwide

Median-household-income-matched peers from other states, closest to Mark's $79,911 (Census ACS 5-Year 2023, table B19013).

Four Lakes, WA
$79,913 median income
Bozeman, MT
$79,903 median income
Apalachin, NY
$79,919 median income
Fort Lauderdale, FL
$79,935 median income
Stowe, PA
$79,875 median income
Pen Argyl, PA
$79,948 median income

Race & Ethnicity Composition

Race and ethnicity - Mark, 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 Mark, IL - Census ACS, OMB race + ethnicity categories RACE, sums to 100% 100.0% ETHNICITY, Hispanic or Latino (any race) 7.5% White 100.0% Black or African American 0.0% Asian 0.0% American Indian 0.0% Native Hawaiian 0.0% Some other race 0.0% Two or more races 0.0% 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 Mark 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
Mark (this city) 522 $79,911
Keithsburg 520 $46,875
Palmyra 524 $46,477
Altona 519 $67,125
Census ACS 5-year FIPS IL Census BPS 2024 OMB Bulletin 23-01

What do people ask about Mark, IL?

What is the population of Mark, IL? +

Mark, IL counts 522 residents according to U.S. Census Bureau ACS 2023 estimates.

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

Mark households earn a median of $79,911 annually, based on Census ACS 2023 data.

What is the cost of living in Mark? +

BEA does not publish a city-level cost-of-living figure for Mark; 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.

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

Homes in Mark carry a median value of $154,800, according to Census ACS 2023 estimates.

Source: U.S. Census Bureau ACS 5-Year 2023, 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.