Postal Codes

62666 ZIP Code

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ZIP code 62666 covers Middletown, Illinois, with a population of about 483 and a median household income of $91,528.

Population
48315 per square mile
Median age
48.910.2 points above the US average
Median household income
$91,5281.1× the Illinois median
Poverty rate
18.3%5.9 points above the US average
Median home value
$111,70055% below the Illinois median
Median rent
$72841% below the Illinois median
Degree or higher
20.7%14.3 points below the US average
Homeownership
72.9%7.9 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
4

Where 62666 is

Middletown, 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

Population483
Median age48.9
Family households63.5%
Born outside the US0%
Speaks a language other than English at home1.3%
White (non-Hispanic)98.1%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino0.2%
Veterans4.6%
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$91,528
Income per person$40,411
Poverty rate18.3%
Households on SNAP or cash assistance18.2%

Household income distribution

Under $10k4.4%
$10–15k3.4%
$15–20k3.0%
$20–25k4.4%
$25–30k3.0%
$30–35k5.9%
$35–40k1.0%
$40–45k2.5%
$45–50k3.0%
$50–60k4.4%
$60–75k9.4%
$75–100k9.9%
$100–125k25.6%
$125–150k2.5%
$150–200k14.8%
$200k or more3.0%

Income as declared to the IRS

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

Tax returns filed270
Mean adjusted gross income$68,556
Returns declaring $200,000 or more0%
Returns, under $25k22.2%
Returns, $25k–$50k22.2%
Returns, $50k–$75k18.5%
Returns, $75k–$100k14.8%
Returns, $100k–$200k22.2%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$111,700
Median gross rent$728
Owner-occupied72.9%
Vacant homes21.6%
Median year built1950

What the homes are

Detached house92.7%
Mobile home7.3%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.6%
Bachelor's degree or higher20.7%
High school diploma or higher92.6%
Works from home0%
Drives to work alone90%
Takes public transport0%
Commutes 45 minutes or more18.6%
Health

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

Obesity37.3% 3.9 pts above the national average of 33.4%
Diagnosed diabetes11.5% 0.5 pts below the national average of 12%
Currently smokes16% 2.8 pts above the national average of 13.2%
High blood pressure35.4% 1.3 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)7.8% 3.5 pts below the national average of 11.3%
Depression22.7% 0.8 pts above the national average of 21.9%
No leisure-time physical activity23.3% 2.1 pts below the national average of 25.4%
Arthritis28.6% 3.5 pts above the national average of 25.1%
Binge drinking19.2% 3.2 pts above the national average of 16%
Taking blood pressure medication76.6% 1.9 pts above the national average of 74.7%
Cancer (non-skin)9.3% 1.6 pts above the national average of 7.7%
Current asthma10.5% same as the national average of 10.4%
Coronary heart disease7.1% 0.9 pts above the national average of 6.2%
Routine check-up in past year77.3% 0.6 pts above the national average of 76.7%
Cholesterol screening87.1% 1.2 pts above the national average of 85.9%
Cognitive disability14.1% 0.7 pts below the national average of 14.8%
Colorectal screening65.6% 1.3 pts above the national average of 64.3%
COPD8.3% 1.7 pts above the national average of 6.6%
Visited a dentist64.6% 3.3 pts above the national average of 61.3%
Any disability30.5% same as the national average of 30.7%
Lacks emotional support25.4% 0.6 pts above the national average of 24.8%
Food insecurity12.5% 4.6 pts below the national average of 17.1%
Received food stamps11.4% 2.9 pts below the national average of 14.3%
Hearing disability7.6% 0.9 pts above the national average of 6.7%
High cholesterol38.2% 2 pts above the national average of 36.2%
Housing insecurity10.2% 3.6 pts below the national average of 13.8%
Independent living disability8.3% same as the national average of 8.4%
Lacks transport6.7% 2.5 pts below the national average of 9.2%
Loneliness33.6% 0.8 pts below the national average of 34.4%
Mammography use71.7% 4.2 pts below the national average of 75.9%
Poor mental health (14+ days)17.2% same as the national average of 16.8%
Mobility disability14.4% same as the national average of 14%
Poor physical health (14+ days)14.3% 0.8 pts above the national average of 13.5%
Self-care disability3.8% same as the national average of 4%
Utility shut-off threat6.2% 2.6 pts below the national average of 8.8%
Sleeps under 7 hours34.5% 1.9 pts below the national average of 36.4%
Stroke3.6% same as the national average of 3.4%
All natural teeth lost11.7% 1.3 pts below the national average of 13%
Vision disability4.5% 1.1 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments4
People employed19
Annual payroll$399,000
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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 88.4% of US census tracts
FEMA ratingRelatively High
Expected annual loss92.3 out of 100
Community resilience74.6 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.

Strong wind99.1Very High at its worst in this ZIP code
Drought98.7Relatively High at its worst in this ZIP code
Cold wave95.2Very High at its worst in this ZIP code
Heat wave90.6Relatively High at its worst in this ZIP code
Hail89.2Relatively High at its worst in this ZIP code
Tornado88.3Very High at its worst in this ZIP code
Landslide86.7Relatively Low at its worst in this ZIP code
River flooding82Relatively High at its worst in this ZIP code
Earthquake81Relatively Moderate at its worst in this ZIP code
Winter weather79.4Relatively High at its worst in this ZIP code
Lightning73.8Relatively High at its worst in this ZIP code
Ice storm71.9Relatively Moderate at its worst in this ZIP code
Wildfire45Very Low at its worst in this ZIP code
Hurricane39.8Very 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$91,528$81,702$78,538
Income per person$40,411$45,104$43,289
Poverty rate18.3%11.7%12.4%
Median home value$111,700$250,500$303,400
Median gross rent$728$1,227$1,348
Homeownership72.9%66.8%65%
Bachelor's degree or higher20.7%37.2%35%
Unemployment rate2.6%5.8%5.2%
Works from home0%14%13.5%
Born outside the US0%14.4%13.9%
Median age48.938.938.7
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 stationMASON CITY 4SE, IL US9.5 km away
Rain in a year39 in
Snow in a year13 in

Average high and low by month

January33.1°F / 16.2°F2.34 in rain, 5.5 in snow
February37.9°F / 19.4°F1.96 in rain, 2.8 in snow
March50.6°F / 29.5°F2.49 in rain, 1.7 in snow
April64.3°F / 41.2°F3.73 in rain
May73.7°F / 52.8°F4.47 in rain
June82.4°F / 61.8°F4.2 in rain
July85.2°F / 64.6°F5.14 in rain
August83.5°F / 62.1°F3.57 in rain
September78.7°F / 53.9°F3.55 in rain
October65.8°F / 42.9°F3.33 in rain
November50.9°F / 30.5°F2.78 in rain, 0.3 in snow
December37.8°F / 21.7°F1.7 in rain, 2.6 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.

Lincoln Community High School District 40446.7% of this ZIP code's land area
New Holland-Middletown Elementary School District 8830.1% of this ZIP code's land area
West Lincoln-Broadwell Elementary School District 9216.7% of this ZIP code's land area
Greenview Community Unit School District 2006.5% 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 vulnerability14more vulnerable than 14% of US census tracts
Socioeconomic status22more vulnerable than 22% of US census tracts
Household characteristics11more vulnerable than 11% of US census tracts
Racial and ethnic minority status39more vulnerable than 39% of US census tracts
Housing type and transport42more vulnerable than 42% of US census tracts
Walkability4.5 out of 20Least walkable
Nearby ZIP codes

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

62671 New Holland, IL8.2 km away
62613 Athens, IL13.8 km away
62642 Greenview, IL14.1 km away
62634 Elkhart, IL14.4 km away
62664 Mason City, IL15.4 km away
62693 Williamsville, IL16.1 km away
62659 Lincoln'S New Salem, IL18.9 km away
62656 Lincoln, IL18.9 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.

Logan County76.9% of this ZIP code's land area
Menard County23.1% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area31.47 sq mi
Water area0.05 sq mi
Population density15 people per sq mi
Latitude, longitude40.0967, -89.5818

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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