Postal Codes

61818 ZIP Code

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ZIP code 61818 covers Cerro Gordo, Illinois, with a population of about 1,608 and a median household income of $75,536.

Population
1,60841 per square mile
Median age
40.92.2 points above the US average
Median household income
$75,5368% below the Illinois median
Poverty rate
10%2.4 points below the US average
Typical home value
$150,282up 16.2% in five years
Degree or higher
17.9%17.1 points below the US average
Homeownership
81.3%16.3 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
22

Where 61818 is

Cerro Gordo, 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

Population1,608
Median age40.9
Family households73.3%
Born outside the US0%
Speaks a language other than English at home2.5%
White (non-Hispanic)94.5%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino1.2%
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$75,536
Income per person$31,964
Poverty rate10%
Households on SNAP or cash assistance11.2%

Household income distribution

Under $10k1.9%
$10–15k2.6%
$15–20k3.7%
$20–25k3.2%
$25–30k0.8%
$30–35k1.0%
$35–40k1.4%
$40–45k5.6%
$45–50k7.5%
$50–60k12.8%
$60–75k9.3%
$75–100k19.2%
$100–125k11.7%
$125–150k7.2%
$150–200k8.2%
$200k or more4.0%

Income as declared to the IRS

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

Tax returns filed760
Mean adjusted gross income$65,821
Returns declaring $200,000 or more3.9%
Returns, under $25k26.3%
Returns, $25k–$50k22.4%
Returns, $50k–$75k17.1%
Returns, $75k–$100k13.2%
Returns, $100k–$200k17.1%
Returns, $200k or more3.9%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$113,400
Owner-occupied81.3%
Vacant homes4.6%
Median year built1956

What the homes are

Detached house91.1%
Attached house2.6%
2 to 4 units2%
5 to 19 units2.9%
Mobile home1.4%
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$150,282as of 2026-07
Typical home value, 1 yeardown 8.1%
Typical home value, 5 yearsup 16.2%
Typical home value, 10 yearsup 56.9%
Typical home value since 2000
201220192026$163,534$85,511

$89,941 in 2012 to $150,282 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6%
Bachelor's degree or higher17.9%
High school diploma or higher96.9%
Works from home12.5%
Drives to work alone82.4%
Takes public transport0%
Commutes 45 minutes or more4.8%
Health

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

Obesity36.7% 3.3 pts above the national average of 33.4%
Diagnosed diabetes11.1% 0.9 pts below the national average of 12%
Currently smokes14% 0.8 pts above the national average of 13.2%
High blood pressure35.3% 1.2 pts above the national average of 34.1%
Fair or poor general health17.4% 2.9 pts below the national average of 20.3%
No health insurance (18–64)6.4% 4.9 pts below the national average of 11.3%
Depression22.7% 0.8 pts above the national average of 21.9%
No leisure-time physical activity21.9% 3.5 pts below the national average of 25.4%
Arthritis28.2% 3.1 pts above the national average of 25.1%
Binge drinking19% 3 pts above the national average of 16%
Taking blood pressure medication76.9% 2.2 pts above the national average of 74.7%
Cancer (non-skin)9.5% 1.8 pts above the national average of 7.7%
Current asthma10.4% same as the national average of 10.4%
Coronary heart disease6.7% 0.5 pts above the national average of 6.2%
Routine check-up in past year78.2% 1.5 pts above the national average of 76.7%
Cholesterol screening87.5% 1.6 pts above the national average of 85.9%
Cognitive disability12.9% 1.9 pts below the national average of 14.8%
Colorectal screening63.6% 0.7 pts below the national average of 64.3%
COPD7.5% 0.9 pts above the national average of 6.6%
Visited a dentist65.3% 4 pts above the national average of 61.3%
Any disability28.9% 1.8 pts below the national average of 30.7%
Lacks emotional support22.9% 1.9 pts below the national average of 24.8%
Food insecurity11.3% 5.8 pts below the national average of 17.1%
Received food stamps10.9% 3.4 pts below the national average of 14.3%
Hearing disability7.3% 0.6 pts above the national average of 6.7%
High cholesterol37.3% 1.1 pts above the national average of 36.2%
Housing insecurity9.5% 4.3 pts below the national average of 13.8%
Independent living disability7.7% 0.7 pts below the national average of 8.4%
Lacks transport6.4% 2.8 pts below the national average of 9.2%
Loneliness32.1% 2.3 pts below the national average of 34.4%
Mammography use72.7% 3.2 pts below the national average of 75.9%
Poor mental health (14+ days)16.7% same as the national average of 16.8%
Mobility disability13.3% 0.7 pts below the national average of 14%
Poor physical health (14+ days)13.2% same as the national average of 13.5%
Self-care disability3.4% 0.6 pts below the national average of 4%
Utility shut-off threat6.3% 2.5 pts below the national average of 8.8%
Sleeps under 7 hours35.5% 0.9 pts below the national average of 36.4%
Stroke3.4% same as the national average of 3.4%
All natural teeth lost10.5% 2.5 pts below the national average of 13%
Vision disability4.2% 1.4 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments22
People employed147
Annual payroll$7,287,000
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 67% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss69.9 out of 100
Community resilience82.6 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.

Drought98.2Relatively High at its worst in this ZIP code
Strong wind91.9Relatively High at its worst in this ZIP code
Cold wave87.5Very High at its worst in this ZIP code
Hail79.7Relatively High at its worst in this ZIP code
Earthquake78.9Relatively Moderate at its worst in this ZIP code
Winter weather78.8Relatively High at its worst in this ZIP code
Landslide75.9Relatively Low at its worst in this ZIP code
Tornado73.7Very High at its worst in this ZIP code
Heat wave59.9Relatively High at its worst in this ZIP code
River flooding55.8Relatively High at its worst in this ZIP code
Ice storm54.9Relatively Moderate at its worst in this ZIP code
Wildfire51.6Relatively Low at its worst in this ZIP code
Lightning50.5Relatively High at its worst in this ZIP code
Hurricane41Very 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$75,536$81,702$78,538
Income per person$31,964$45,104$43,289
Poverty rate10%11.7%12.4%
Median home value$113,400$250,500$303,400
Median gross rent$1,227$1,348
Homeownership81.3%66.8%65%
Bachelor's degree or higher17.9%37.2%35%
Unemployment rate6%5.8%5.2%
Works from home12.5%14%13.5%
Born outside the US0%14.4%13.9%
Median age40.938.938.7
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 stationDECATUR AP, IL US12.5 km away
Rain in a year36 in

Average high and low by month

January34.7°F / 20.1°F1.99 in rain
February39.8°F / 23.4°F1.84 in rain
March51.9°F / 32.4°F2.51 in rain
April63.9°F / 42.3°F3.66 in rain
May74.4°F / 53.4°F4.38 in rain
June83°F / 62.4°F4.38 in rain
July85.8°F / 65.6°F3.32 in rain
August84.3°F / 63.1°F3.03 in rain
September78.9°F / 55°F2.98 in rain
October66.1°F / 44.4°F3.18 in rain
November51.3°F / 34.2°F2.97 in rain
December39.7°F / 25.2°F2.12 in rain
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 supermarket6% of this ZIP code's area
No vehicle and far from a supermarket9% of this ZIP code's area
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.

Cerro Gordo Community Unit School District 10097.4% of this ZIP code's land area
Bement Community Unit School District 52.6% 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 vulnerability23more vulnerable than 23% of US census tracts
Socioeconomic status32more vulnerable than 32% of US census tracts
Household characteristics64more vulnerable than 64% of US census tracts
Racial and ethnic minority status4more vulnerable than 4% of US census tracts
Housing type and transport15more vulnerable than 15% of US census tracts
Walkability5.2 out of 20Least walkable
Nearby ZIP codes

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

61936 La Place, IL7.8 km away
61855 Milmine, IL8.4 km away
62501 Argenta, IL10 km away
62554 Oreana, IL13.3 km away
61830 Cisco, IL14.6 km away
61813 Bement, IL14.7 km away
61929 Hammond, IL14.9 km away
62549 Mt Zion, IL16.2 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.

Piatt County85.5% of this ZIP code's land area
Macon County14.5% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area39.04 sq mi
Population density41 people per sq mi
Latitude, longitude39.8681, -88.7256

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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