Postal Codes

62664 ZIP Code

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ZIP code 62664 covers Mason City, Illinois, with a population of about 2,848 and a median household income of $71,012.

Population
2,84827 per square mile
Median age
49.811.1 points above the US average
Median household income
$71,01213% below the Illinois median
Poverty rate
13.7%1.3 points above the US average
Typical home value
$116,924up 13.5% in five years
Median rent
$77537% below the Illinois median
Degree or higher
22.1%12.9 points below the US average
Homeownership
81.7%16.7 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
53

Where 62664 is

Mason City, 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

Population2,848
Median age49.8
Family households61.1%
Born outside the US0%
Speaks a language other than English at home1.8%
White (non-Hispanic)97.1%
Black (non-Hispanic)1.4%
Asian (non-Hispanic)0%
Hispanic or Latino0%
Veterans6.1%
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$71,012
Income per person$37,582
Poverty rate13.7%
Households on SNAP or cash assistance14.5%

Household income distribution

Under $10k3.8%
$10–15k6.9%
$15–20k2.4%
$20–25k4.8%
$25–30k2.7%
$30–35k5.8%
$35–40k2.1%
$40–45k5.5%
$45–50k4.4%
$50–60k3.2%
$60–75k14.8%
$75–100k16.1%
$100–125k6.8%
$125–150k6.7%
$150–200k7.3%
$200k or more6.8%

Income as declared to the IRS

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

Tax returns filed1,310
Mean adjusted gross income$66,059
Returns declaring $200,000 or more3.1%
Returns, under $25k26.7%
Returns, $25k–$50k25.2%
Returns, $50k–$75k18.3%
Returns, $75k–$100k10.7%
Returns, $100k–$200k16.0%
Returns, $200k or more3.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$102,900
Median gross rent$775
Rent as a share of household income43.2%
Owner-occupied81.7%
Vacant homes8.2%
Median year built1953

What the homes are

Detached house93.1%
Attached house0.7%
2 to 4 units0.3%
5 to 19 units3%
20 or more units0.3%
Mobile home2.6%
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$116,924as of 2026-07
Typical home value, 1 yearup 13.8%
Typical home value, 5 yearsup 13.5%
Typical home value, 10 yearsup 17.8%
Typical home value since 2000
201620212026$116,924$86,351

$99,296 in 2016 to $116,924 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.1%
Bachelor's degree or higher22.1%
High school diploma or higher92.3%
Works from home10.5%
Drives to work alone82.8%
Takes public transport0.8%
Commutes 45 minutes or more27.7%
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 diabetes12.8% 0.8 pts above the national average of 12%
Currently smokes15.4% 2.2 pts above the national average of 13.2%
High blood pressure38.3% 4.2 pts above the national average of 34.1%
Fair or poor general health20.3% same as the national average of 20.3%
No health insurance (18–64)7.6% 3.7 pts below the national average of 11.3%
Depression22.8% 0.9 pts above the national average of 21.9%
No leisure-time physical activity25% same as the national average of 25.4%
Arthritis31.5% 6.4 pts above the national average of 25.1%
Binge drinking17.2% 1.2 pts above the national average of 16%
Taking blood pressure medication79% 4.3 pts above the national average of 74.7%
Cancer (non-skin)10.4% 2.7 pts above the national average of 7.7%
Current asthma10.6% same as the national average of 10.4%
Coronary heart disease7.9% 1.7 pts above the national average of 6.2%
Routine check-up in past year79.1% 2.4 pts above the national average of 76.7%
Cholesterol screening87.1% 1.2 pts above the national average of 85.9%
Cognitive disability14% 0.8 pts below the national average of 14.8%
Colorectal screening64.2% same as the national average of 64.3%
COPD9.2% 2.6 pts above the national average of 6.6%
Visited a dentist59.7% 1.6 pts below the national average of 61.3%
Any disability32.7% 2 pts above the national average of 30.7%
Lacks emotional support23.4% 1.4 pts below the national average of 24.8%
Food insecurity13.3% 3.8 pts below the national average of 17.1%
Received food stamps13.2% 1.1 pts below the national average of 14.3%
Hearing disability8.6% 1.9 pts above the national average of 6.7%
High cholesterol39.1% 2.9 pts above the national average of 36.2%
Housing insecurity10.2% 3.6 pts below the national average of 13.8%
Independent living disability9.1% 0.7 pts above the national average of 8.4%
Lacks transport7.1% 2.1 pts below the national average of 9.2%
Loneliness32.2% 2.2 pts below the national average of 34.4%
Mammography use70.1% 5.8 pts below the national average of 75.9%
Poor mental health (14+ days)17.1% same as the national average of 16.8%
Mobility disability16.1% 2.1 pts above the national average of 14%
Poor physical health (14+ days)14.8% 1.3 pts above the national average of 13.5%
Self-care disability4.1% same as the national average of 4%
Utility shut-off threat6.7% 2.1 pts below the national average of 8.8%
Sleeps under 7 hours35.8% 0.6 pts below the national average of 36.4%
Stroke4.1% 0.7 pts above the national average of 3.4%
All natural teeth lost14.4% 1.4 pts above the national average of 13%
Vision disability5.1% 0.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments53
People employed373
Annual payroll$13,205,000
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 64.2% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 2 census tracts this ZIP code covers
Expected annual loss73.5 out of 100
Community resilience57.7 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.

Drought97.9Relatively High at its worst in this ZIP code
Strong wind97.9Very High at its worst in this ZIP code
Hail87Relatively Moderate at its worst in this ZIP code
Cold wave84.1Relatively High at its worst in this ZIP code
Landslide80.1Relatively Low at its worst in this ZIP code
Tornado71Relatively Moderate at its worst in this ZIP code
Ice storm67.1Relatively Moderate at its worst in this ZIP code
Earthquake66.9Relatively Low at its worst in this ZIP code
Heat wave59.4Relatively Moderate at its worst in this ZIP code
Winter weather56.3Relatively Moderate at its worst in this ZIP code
River flooding49.3Relatively Moderate at its worst in this ZIP code
Wildfire39.6Very Low at its worst in this ZIP code
Hurricane39.4Very Low at its worst in this ZIP code
Lightning32.4Relatively 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$71,012$81,702$78,538
Income per person$37,582$45,104$43,289
Poverty rate13.7%11.7%12.4%
Median home value$102,900$250,500$303,400
Median gross rent$775$1,227$1,348
Homeownership81.7%66.8%65%
Bachelor's degree or higher22.1%37.2%35%
Unemployment rate3.1%5.8%5.2%
Works from home10.5%14%13.5%
Born outside the US0%14.4%13.9%
Median age49.838.938.7
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 US5.8 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%.

Illini Central Community Unit School District 189100% 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 vulnerability19more vulnerable than 19% of US census tracts
Socioeconomic status46more vulnerable than 46% of US census tracts
Household characteristics35more vulnerable than 35% of US census tracts
Racial and ethnic minority status6more vulnerable than 6% of US census tracts
Housing type and transport9more vulnerable than 9% of US census tracts
Walkability3.8 out of 20Least walkable
Nearby ZIP codes

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

62682 San Jose, IL11 km away
62642 Greenview, IL11.9 km away
62671 New Holland, IL12.3 km away
62666 Middletown, IL15.4 km away
62633 Easton, IL16.6 km away
62659 Lincoln'S New Salem, IL20.5 km away
61532 Forest City, IL20.9 km away
62643 Hartsburg, IL21.4 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.

Mason County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area106.98 sq mi
Water area0.27 sq mi
Population density27 people per sq mi
Latitude, longitude40.2023, -89.6982

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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