Postal Codes

61436 ZIP Code

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ZIP code 61436 covers Gilson, Illinois, with a population of about 810 and a median household income of $74,688.

Population
81013 per square mile
Median age
59.120.4 points above the US average
Median household income
$74,6889% below the Illinois median
Poverty rate
7%5.4 points below the US average
Median home value
$186,50026% below the Illinois median
Degree or higher
21.9%13.1 points below the US average
Homeownership
86.4%21.4 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
4

Where 61436 is

Gilson, 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

Population810
Median age59.1
Family households77.7%
Born outside the US0%
Speaks a language other than English at home2.5%
White (non-Hispanic)98.5%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino0.1%
Veterans8.8%
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$74,688
Income per person$49,202
Poverty rate7%
Households on SNAP or cash assistance6.7%

Household income distribution

Under $10k9.2%
$10–15k0.0%
$15–20k2.8%
$20–25k1.1%
$25–30k13.1%
$30–35k3.6%
$35–40k0.0%
$40–45k4.2%
$45–50k0.0%
$50–60k7.0%
$60–75k9.2%
$75–100k22.6%
$100–125k10.6%
$125–150k3.6%
$150–200k7.5%
$200k or more5.6%

Income as declared to the IRS

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

Tax returns filed380
Mean adjusted gross income$77,774
Returns declaring $200,000 or more5.3%
Returns, under $25k26.3%
Returns, $25k–$50k21.1%
Returns, $50k–$75k15.8%
Returns, $75k–$100k13.2%
Returns, $100k–$200k18.4%
Returns, $200k or more5.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$186,500
Owner-occupied86.4%
Vacant homes16.1%
Median year built1967

What the homes are

Detached house96.3%
Mobile home3.7%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0%
Bachelor's degree or higher21.9%
High school diploma or higher96.1%
Works from home7.8%
Drives to work alone91%
Takes public transport0%
Commutes 45 minutes or more31%
Health

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

Obesity36.8% 3.4 pts above the national average of 33.4%
Diagnosed diabetes12.1% same as the national average of 12%
Currently smokes13.8% 0.6 pts above the national average of 13.2%
High blood pressure37.9% 3.8 pts above the national average of 34.1%
Fair or poor general health17.7% 2.6 pts below the national average of 20.3%
No health insurance (18–64)6.1% 5.2 pts below the national average of 11.3%
Depression21.5% same as the national average of 21.9%
No leisure-time physical activity22.7% 2.7 pts below the national average of 25.4%
Arthritis31% 5.9 pts above the national average of 25.1%
Binge drinking17.4% 1.4 pts above the national average of 16%
Taking blood pressure medication79.4% 4.7 pts above the national average of 74.7%
Cancer (non-skin)10.8% 3.1 pts above the national average of 7.7%
Current asthma10.2% same as the national average of 10.4%
Coronary heart disease7.8% 1.6 pts above the national average of 6.2%
Routine check-up in past year80.2% 3.5 pts above the national average of 76.7%
Cholesterol screening89.3% 3.4 pts above the national average of 85.9%
Cognitive disability12.2% 2.6 pts below the national average of 14.8%
Colorectal screening66.4% 2.1 pts above the national average of 64.3%
COPD8% 1.4 pts above the national average of 6.6%
Visited a dentist66.9% 5.6 pts above the national average of 61.3%
Any disability29.4% 1.3 pts below the national average of 30.7%
Lacks emotional support22.6% 2.2 pts below the national average of 24.8%
Food insecurity10.4% 6.7 pts below the national average of 17.1%
Received food stamps9.9% 4.4 pts below the national average of 14.3%
Hearing disability8.3% 1.6 pts above the national average of 6.7%
High cholesterol39.4% 3.2 pts above the national average of 36.2%
Housing insecurity8.7% 5.1 pts below the national average of 13.8%
Independent living disability7.5% 0.9 pts below the national average of 8.4%
Lacks transport5.8% 3.4 pts below the national average of 9.2%
Loneliness30.3% 4.1 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)15.7% 1.1 pts below the national average of 16.8%
Mobility disability14.2% same as the national average of 14%
Poor physical health (14+ days)13.7% same as the national average of 13.5%
Self-care disability3.5% 0.5 pts below the national average of 4%
Utility shut-off threat5.7% 3.1 pts below the national average of 8.8%
Sleeps under 7 hours33.9% 2.5 pts below the national average of 36.4%
Stroke3.8% same as the national average of 3.4%
All natural teeth lost10.3% 2.7 pts below the national average of 13%
Vision disability4.2% 1.4 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments4
People employed4
Annual payroll$361,000
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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 36% of US census tracts
FEMA ratingRelatively Low
Expected annual loss37.8 out of 100
Community resilience54.2 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.

Drought95.8Relatively Moderate at its worst in this ZIP code
Strong wind95.2Very High at its worst in this ZIP code
Landslide92.2Relatively Low at its worst in this ZIP code
Hail85.6Relatively High at its worst in this ZIP code
Cold wave72.9Relatively High at its worst in this ZIP code
Ice storm71.9Relatively Moderate at its worst in this ZIP code
Heat wave64.9Relatively Moderate at its worst in this ZIP code
Lightning63.1Relatively Moderate at its worst in this ZIP code
Tornado59.8Relatively Moderate at its worst in this ZIP code
Winter weather56.8Relatively Moderate at its worst in this ZIP code
Hurricane34.8Very Low at its worst in this ZIP code
Earthquake34.4Relatively Low at its worst in this ZIP code
Wildfire32.2Very Low at its worst in this ZIP code
River flooding26.7Relatively 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$74,688$81,702$78,538
Income per person$49,202$45,104$43,289
Poverty rate7%11.7%12.4%
Median home value$186,500$250,500$303,400
Median gross rent$1,227$1,348
Homeownership86.4%66.8%65%
Bachelor's degree or higher21.9%37.2%35%
Unemployment rate0%5.8%5.2%
Works from home7.8%14%13.5%
Born outside the US0%14.4%13.9%
Median age59.138.938.7
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 stationKNOXVILLE, IL US10.1 km away
Rain in a year40 in
Snow in a year25 in

Average high and low by month

January31.6°F / 14.3°F2.09 in rain, 6.4 in snow
February36.1°F / 18.1°F2.12 in rain, 7.7 in snow
March48.8°F / 28.5°F2.64 in rain, 3.4 in snow
April61.5°F / 39.4°F3.95 in rain, 0.4 in snow
May72°F / 50.8°F5.54 in rain
June81.2°F / 60.7°F4.61 in rain
July83.6°F / 64.7°F4.16 in rain
August82°F / 62.6°F3.5 in rain
September76.3°F / 54.4°F4.18 in rain
October63.8°F / 41.8°F3.03 in rain, 0.2 in snow
November49.3°F / 30.7°F2.51 in rain, 1.4 in snow
December36.4°F / 20.5°F2.17 in rain, 5.9 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 supermarketNone of this ZIP code
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 4 school districts, so the address decides which one, not the ZIP code.

Knoxville Community Unit School District 20293% of this ZIP code's land area
Williamsfield Community Unit School District 2103.1% of this ZIP code's land area
Galesburg Community Unit School District 2052.2% of this ZIP code's land area
Abingdon-Avon Community Unit School District 2761.7% 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 vulnerability13more vulnerable than 13% of US census tracts
Socioeconomic status15more vulnerable than 15% of US census tracts
Household characteristics27more vulnerable than 27% of US census tracts
Racial and ethnic minority status8more vulnerable than 8% of US census tracts
Housing type and transport19more vulnerable than 19% of US census tracts
Walkability3.5 out of 20Least walkable
Nearby ZIP codes

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

61428 Dahinda, IL9.2 km away
61448 Knoxville, IL10.2 km away
61458 Maquon, IL10.4 km away
61430 East Galesburg, IL13.5 km away
61489 Williamsfield, IL13.7 km away
61572 Yates City, IL15.9 km away
61485 Victoria, IL17.9 km away
61488 Wataga, IL18.2 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.

Knox County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area61.18 sq mi
Water area0.02 sq mi
Population density13 people per sq mi
Latitude, longitude40.8765, -90.1747

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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