Postal Codes

61728 ZIP Code

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ZIP code 61728 covers Colfax, Illinois, with a population of about 1,316 and a median household income of $93,654.

Population
1,31619 per square mile
Median age
36.91.8 points below the US average
Median household income
$93,6541.1× the Illinois median
Poverty rate
6.5%5.9 points below the US average
Typical home value
$178,516up 37% in five years
Median rent
$79935% below the Illinois median
Degree or higher
28.5%6.5 points below the US average
Homeownership
80.5%15.5 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
27

Where 61728 is

Colfax, Illinois — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population1,316
Median age36.9
Family households71.3%
Born outside the US0.8%
Speaks a language other than English at home0.5%
White (non-Hispanic)93.3%
Black (non-Hispanic)1.5%
Asian (non-Hispanic)0.2%
Hispanic or Latino2.1%
Veterans6.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$93,654
Income per person$44,560
Poverty rate6.5%
Households on SNAP or cash assistance11.2%

Household income distribution

Under $10k3.9%
$10–15k1.6%
$15–20k1.4%
$20–25k2.2%
$25–30k5.1%
$30–35k1.8%
$35–40k1.0%
$40–45k1.8%
$45–50k4.3%
$50–60k8.3%
$60–75k11.0%
$75–100k12.4%
$100–125k12.2%
$125–150k5.7%
$150–200k16.3%
$200k or more11.0%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed650
Mean adjusted gross income$79,146
Returns declaring $200,000 or more4.6%
Returns, under $25k24.6%
Returns, $25k–$50k21.5%
Returns, $50k–$75k16.9%
Returns, $75k–$100k12.3%
Returns, $100k–$200k20.0%
Returns, $200k or more4.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$152,200
Median gross rent$799
Rent as a share of household income20.5%
Owner-occupied80.5%
Vacant homes7.3%
Median year built1953

What the homes are

Detached house95.5%
Attached house0.6%
2 to 4 units0.4%
5 to 19 units1.7%
Mobile home1.9%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$178,516as of 2026-07
Typical home value, 1 yearup 6.6%
Typical home value, 5 yearsup 37%
Typical home value, 10 yearsup 49.6%
Typical home value since 2000
200020132026$178,516$89,451

$91,104 in 2000 to $178,516 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate7%
Bachelor's degree or higher28.5%
High school diploma or higher98.2%
Works from home10.8%
Drives to work alone79.8%
Takes public transport0%
Commutes 45 minutes or more18.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity38.6% 5.2 pts above the national average of 33.4%
Diagnosed diabetes12% same as the national average of 12%
Currently smokes16.2% 3 pts above the national average of 13.2%
High blood pressure37.2% 3.1 pts above the national average of 34.1%
Fair or poor general health19.5% 0.8 pts below the national average of 20.3%
No health insurance (18–64)7.3% 4 pts below the national average of 11.3%
Depression23.5% 1.6 pts above the national average of 21.9%
No leisure-time physical activity23.5% 1.9 pts below the national average of 25.4%
Arthritis29% 3.9 pts above the national average of 25.1%
Binge drinking17.9% 1.9 pts above the national average of 16%
Taking blood pressure medication76.7% 2 pts above the national average of 74.7%
Cancer (non-skin)9.1% 1.4 pts above the national average of 7.7%
Current asthma10.7% same as the national average of 10.4%
Coronary heart disease7% 0.8 pts above the national average of 6.2%
Routine check-up in past year77.9% 1.2 pts above the national average of 76.7%
Cholesterol screening86.7% 0.8 pts above the national average of 85.9%
Cognitive disability14% 0.8 pts below the national average of 14.8%
Colorectal screening62.9% 1.4 pts below the national average of 64.3%
COPD8.4% 1.8 pts above the national average of 6.6%
Visited a dentist61.2% same as the national average of 61.3%
Any disability30.6% same as the national average of 30.7%
Lacks emotional support23.9% 0.9 pts below the national average of 24.8%
Food insecurity13.5% 3.6 pts below the national average of 17.1%
Received food stamps13.7% 0.6 pts below the national average of 14.3%
Hearing disability7.5% 0.8 pts above the national average of 6.7%
High cholesterol38.8% 2.6 pts above the national average of 36.2%
Housing insecurity10.9% 2.9 pts below the national average of 13.8%
Independent living disability8.6% same as the national average of 8.4%
Lacks transport7.3% 1.9 pts below the national average of 9.2%
Loneliness32.2% 2.2 pts below the national average of 34.4%
Mammography use69.9% 6 pts below the national average of 75.9%
Poor mental health (14+ days)17.5% 0.7 pts above the national average of 16.8%
Mobility disability14.4% same as the national average of 14%
Poor physical health (14+ days)14.2% 0.7 pts above the national average of 13.5%
Self-care disability3.9% same as the national average of 4%
Utility shut-off threat7.3% 1.5 pts below the national average of 8.8%
Sleeps under 7 hours34.2% 2.2 pts below the national average of 36.4%
Stroke3.6% same as the national average of 3.4%
All natural teeth lost12.9% same as the national average of 13%
Vision disability4.8% 0.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments27
People employed109
Annual payroll$4,746,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 60.5% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 3 census tracts this ZIP code covers
Expected annual loss64.7 out of 100
Community resilience92.4 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought97.6Relatively High at its worst in this ZIP code
Cold wave92.8Very High at its worst in this ZIP code
Hail76.8Relatively Moderate at its worst in this ZIP code
Landslide72.9Very Low at its worst in this ZIP code
Winter weather70.1Relatively High at its worst in this ZIP code
Strong wind69.9Relatively Moderate at its worst in this ZIP code
Tornado67.9Relatively High at its worst in this ZIP code
Earthquake63.5Relatively Low at its worst in this ZIP code
River flooding59.5Relatively High at its worst in this ZIP code
Heat wave53.2Relatively Moderate at its worst in this ZIP code
Ice storm50.5Relatively Low at its worst in this ZIP code
Wildfire45.9Very Low at its worst in this ZIP code
Hurricane36Very Low at its worst in this ZIP code
Lightning34.4Relatively Low at its worst in this ZIP code
Compared with Illinois and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPIllinoisUnited States
Median household income$93,654$81,702$78,538
Income per person$44,560$45,104$43,289
Poverty rate6.5%11.7%12.4%
Median home value$152,200$250,500$303,400
Median gross rent$799$1,227$1,348
Homeownership80.5%66.8%65%
Bachelor's degree or higher28.5%37.2%35%
Unemployment rate7%5.8%5.2%
Works from home10.8%14%13.5%
Born outside the US0.8%14.4%13.9%
Median age36.938.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationCHENOA, IL US20.7 km away
Rain in a year36 in
Snow in a year20 in

Average high and low by month

January31.7°F / 15.2°F2.17 in rain, 5.3 in snow
February36.5°F / 18.8°F1.59 in rain, 4.8 in snow
March49.2°F / 28.8°F2.68 in rain, 2.3 in snow
April62.4°F / 39.1°F3.57 in rain, 0.8 in snow
May73.4°F / 50.6°F4.52 in rain
June81.7°F / 59.9°F3.81 in rain
July83.9°F / 63°F3.74 in rain
August82.3°F / 60.7°F3.17 in rain
September77.1°F / 53.3°F3.13 in rain
October64.4°F / 42.4°F3.23 in rain
November48.9°F / 31°F2.63 in rain, 1.3 in snow
December36.7°F / 21.3°F2.03 in rain, 5.4 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket38% of this ZIP code's area
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Ridgeview Community Unit School District 1994.1% of this ZIP code's land area
Lexington Community Unit School District 74.8% of this ZIP code's land area
Tri-Valley Community Unit School District 31.1% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability17more vulnerable than 17% of US census tracts
Socioeconomic status23more vulnerable than 23% of US census tracts
Household characteristics32more vulnerable than 32% of US census tracts
Racial and ethnic minority status9more vulnerable than 9% of US census tracts
Housing type and transport22more vulnerable than 22% of US census tracts
Walkability5.7 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

61720 Anchor, IL8.4 km away
61730 Cooksville, IL10.4 km away
61731 Cropsey, IL11.2 km away
61737 Ellsworth, IL17.3 km away
61753 Lexington, IL17.3 km away
61770 Saybrook, IL17.4 km away
61722 Arrowsmith, IL17.6 km away
61758 Merna, IL18.4 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

McLean County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area69.43 sq mi
Water area0.02 sq mi
Population density19 people per sq mi
Latitude, longitude40.5704, -88.6200

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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