Postal Codes

61812 ZIP Code

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ZIP code 61812 covers Armstrong, Illinois, with a population of about 291 and a median household income of $101,250.

Population
29113 per square mile
Median age
40.31.6 points above the US average
Median household income
$101,2501.2× the Illinois median
Poverty rate
12%about the US average
Median home value
$143,80043% below the Illinois median
Degree or higher
20.2%14.8 points below the US average
Homeownership
94.1%29.1 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
5

Where 61812 is

Armstrong, 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

Population291
Median age40.3
Family households81.4%
Born outside the US0%
Speaks a language other than English at home1.6%
White (non-Hispanic)88.3%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino9.6%
Veterans15.5%
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$101,250
Income per person$38,327
Poverty rate12%
Households on SNAP or cash assistance13.7%

Household income distribution

Under $10k2.0%
$10–15k0.0%
$15–20k2.9%
$20–25k0.0%
$25–30k4.9%
$30–35k12.7%
$35–40k0.0%
$40–45k6.9%
$45–50k0.0%
$50–60k0.0%
$60–75k2.0%
$75–100k18.6%
$100–125k18.6%
$125–150k17.6%
$150–200k0.0%
$200k or more13.7%

Income as declared to the IRS

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

Tax returns filed160
Mean adjusted gross income$85,331
Returns declaring $200,000 or more0%
Returns, under $25k18.8%
Returns, $25k–$50k18.8%
Returns, $50k–$75k18.8%
Returns, $75k–$100k12.5%
Returns, $100k–$200k31.2%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$143,800
Owner-occupied94.1%
Vacant homes11.3%
Median year built1965

What the homes are

Detached house87.8%
Mobile home12.2%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5%
Bachelor's degree or higher20.2%
High school diploma or higher100%
Works from home16.4%
Drives to work alone76.9%
Takes public transport0%
Commutes 45 minutes or more30.4%
Health

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

Obesity42.6% 9.2 pts above the national average of 33.4%
Diagnosed diabetes13.8% 1.8 pts above the national average of 12%
Currently smokes16.7% 3.5 pts above the national average of 13.2%
High blood pressure41.6% 7.5 pts above the national average of 34.1%
Fair or poor general health20.9% 0.6 pts above the national average of 20.3%
No health insurance (18–64)7.1% 4.2 pts below the national average of 11.3%
Depression23.9% 2 pts above the national average of 21.9%
No leisure-time physical activity25.7% same as the national average of 25.4%
Arthritis32.2% 7.1 pts above the national average of 25.1%
Binge drinking17.5% 1.5 pts above the national average of 16%
Taking blood pressure medication78.4% 3.7 pts above the national average of 74.7%
Cancer (non-skin)9.8% 2.1 pts above the national average of 7.7%
Current asthma10.9% 0.5 pts above the national average of 10.4%
Coronary heart disease7.7% 1.5 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 screening88.1% 2.2 pts above the national average of 85.9%
Cognitive disability14.1% 0.7 pts below the national average of 14.8%
Colorectal screening67.3% 3 pts above the national average of 64.3%
COPD9.7% 3.1 pts above the national average of 6.6%
Visited a dentist63% 1.7 pts above the national average of 61.3%
Any disability31.7% 1 pts above the national average of 30.7%
Lacks emotional support23.8% 1 pts below the national average of 24.8%
Food insecurity13.8% 3.3 pts below the national average of 17.1%
Received food stamps13.9% same as the national average of 14.3%
Hearing disability7.8% 1.1 pts above the national average of 6.7%
High cholesterol41.8% 5.6 pts above the national average of 36.2%
Housing insecurity10.5% 3.3 pts below the national average of 13.8%
Independent living disability8.8% same as the national average of 8.4%
Lacks transport7.2% 2 pts below the national average of 9.2%
Loneliness31.5% 2.9 pts below the national average of 34.4%
Mammography use68.7% 7.2 pts below the national average of 75.9%
Poor mental health (14+ days)17.3% 0.5 pts above the national average of 16.8%
Mobility disability16.2% 2.2 pts above the national average of 14%
Poor physical health (14+ days)15.5% 2 pts above the national average of 13.5%
Self-care disability4.3% same as the national average of 4%
Utility shut-off threat6.9% 1.9 pts below the national average of 8.8%
Sleeps under 7 hours34.4% 2 pts below the national average of 36.4%
Stroke4% 0.6 pts above the national average of 3.4%
All natural teeth lost12.3% 0.7 pts below the national average of 13%
Vision disability5.1% 0.5 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments5
People employed31
Annual payroll$626,000
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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 74% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss81.8 out of 100
Community resilience79.8 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.

Drought96.7Relatively Moderate at its worst in this ZIP code
Cold wave92.5Relatively High at its worst in this ZIP code
Winter weather91.1Relatively High at its worst in this ZIP code
Landslide89.4Relatively Low at its worst in this ZIP code
Strong wind87.7Relatively High at its worst in this ZIP code
Hail84.8Relatively Moderate at its worst in this ZIP code
River flooding80.6Relatively High at its worst in this ZIP code
Earthquake76.3Relatively Low at its worst in this ZIP code
Tornado72.1Relatively High at its worst in this ZIP code
Wildfire63.7Very Low at its worst in this ZIP code
Heat wave63.1Relatively Moderate at its worst in this ZIP code
Ice storm55.9Relatively Low at its worst in this ZIP code
Lightning53.1Relatively Moderate at its worst in this ZIP code
Hurricane48.5Very 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$101,250$81,702$78,538
Income per person$38,327$45,104$43,289
Poverty rate12%11.7%12.4%
Median home value$143,800$250,500$303,400
Median gross rent$1,227$1,348
Homeownership94.1%66.8%65%
Bachelor's degree or higher20.2%37.2%35%
Unemployment rate5%5.8%5.2%
Works from home16.4%14%13.5%
Born outside the US0%14.4%13.9%
Median age40.338.938.7
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 stationOGDEN, IL US13.1 km away
Rain in a year41 in
Snow in a year25 in

Average high and low by month

January34°F / 18.2°F2.38 in rain, 5.9 in snow
February38.9°F / 21.6°F2.18 in rain, 9.3 in snow
March50.6°F / 30.2°F2.82 in rain, 3 in snow
April63.7°F / 40.8°F3.88 in rain, 0.3 in snow
May73.3°F / 52.4°F4.96 in rain
June81.6°F / 62°F4.96 in rain
July83.6°F / 65.1°F4.39 in rain
August82.6°F / 62.9°F3.5 in rain
September77.9°F / 55.7°F3.35 in rain
October65.7°F / 44.3°F3.32 in rain
November51.1°F / 32.4°F3.15 in rain, 1 in snow
December39.3°F / 23.9°F2.35 in rain, 5.5 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 2 school districts, so the address decides which one, not the ZIP code.

Armstrong-Ellis Consolidated School District 6150% of this ZIP code's land area
Armstrong Township High School District 22550% 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 vulnerability25more vulnerable than 25% of US census tracts
Socioeconomic status24more vulnerable than 24% of US census tracts
Household characteristics54more vulnerable than 54% of US census tracts
Racial and ethnic minority status15more vulnerable than 15% of US census tracts
Housing type and transport27more vulnerable than 27% of US census tracts
Walkability4.7 out of 20Least walkable
Nearby ZIP codes

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

61871 Royal, IL7.3 km away
61831 Collison, IL8.1 km away
61859 Ogden, IL10.6 km away
61844 Fithian, IL11 km away
61862 Penfield, IL11.6 km away
61865 Potomac, IL11.8 km away
61857 Muncie, IL12 km away
61858 Oakwood, IL14.7 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.

Vermilion County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area21.97 sq mi
Population density13 people per sq mi
Latitude, longitude40.2175, -87.8943

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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