Postal Codes

60423 ZIP Code

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ZIP code 60423 covers Frankfort, Illinois, with a population of about 32,813 and a median household income of $137,651.

Population
32,813866 per square mile
Median age
42.43.7 points above the US average
Median household income
$137,6511.7× the Illinois median
Poverty rate
5.2%7.2 points below the US average
Typical home value
$503,127up 32.2% in five years
Median rent
$1,4551.2× the Illinois median
Degree or higher
48.3%13.3 points above the US average
Homeownership
93.6%28.6 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
1,131

Where 60423 is

Frankfort, 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

Population32,813
Median age42.4
Family households82.9%
Born outside the US6.4%
Speaks a language other than English at home10.3%
White (non-Hispanic)76.8%
Black (non-Hispanic)7.9%
Asian (non-Hispanic)2.3%
Hispanic or Latino7.8%
Veterans5.1%
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$137,651
Income per person$54,243
Poverty rate5.2%
Households on SNAP or cash assistance4.2%

Household income distribution

Under $10k2.8%
$10–15k1.0%
$15–20k1.2%
$20–25k1.2%
$25–30k1.2%
$30–35k1.5%
$35–40k1.8%
$40–45k0.9%
$45–50k1.7%
$50–60k5.3%
$60–75k5.4%
$75–100k10.0%
$100–125k11.2%
$125–150k10.6%
$150–200k16.4%
$200k or more27.8%

Income as declared to the IRS

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

Tax returns filed16,570
Mean adjusted gross income$147,795
Returns declaring $200,000 or more18.8%
Returns, under $25k21.4%
Returns, $25k–$50k13.5%
Returns, $50k–$75k11.6%
Returns, $75k–$100k9.4%
Returns, $100k–$200k25.4%
Returns, $200k or more18.8%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$376,500
Median gross rent$1,455
Rent as a share of household income25.5%
Owner-occupied93.6%
Vacant homes4.3%
Median year built1993

What the homes are

Detached house81.4%
Attached house11.3%
2 to 4 units3.4%
5 to 19 units1.5%
20 or more units0.2%
Mobile home2.1%
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$503,127as of 2026-07
Typical home value, 1 yearup 3.5%
Typical home value, 5 yearsup 32.2%
Typical home value, 10 yearsup 60.6%
Typical home value since 2000
200020132026$503,127$234,992

$234,992 in 2000 to $503,127 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.2%
Bachelor's degree or higher48.3%
High school diploma or higher97.4%
Works from home16.8%
Drives to work alone73.6%
Takes public transport3%
Commutes 45 minutes or more28.7%
Health

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

Obesity35.7% 2.3 pts above the national average of 33.4%
Diagnosed diabetes9.4% 2.6 pts below the national average of 12%
Currently smokes9.9% 3.3 pts below the national average of 13.2%
High blood pressure31.6% 2.5 pts below the national average of 34.1%
Fair or poor general health14.1% 6.2 pts below the national average of 20.3%
No health insurance (18–64)5.4% 5.9 pts below the national average of 11.3%
Depression19.6% 2.3 pts below the national average of 21.9%
No leisure-time physical activity19.3% 6.1 pts below the national average of 25.4%
Arthritis25.4% same as the national average of 25.1%
Binge drinking19.7% 3.7 pts above the national average of 16%
Taking blood pressure medication77.8% 3.1 pts above the national average of 74.7%
Cancer (non-skin)8.8% 1.1 pts above the national average of 7.7%
Current asthma9.8% 0.6 pts below the national average of 10.4%
Coronary heart disease5.2% 1 pts below the national average of 6.2%
Routine check-up in past year79% 2.3 pts above the national average of 76.7%
Cholesterol screening89.9% 4 pts above the national average of 85.9%
Cognitive disability10.2% 4.6 pts below the national average of 14.8%
Colorectal screening65% 0.7 pts above the national average of 64.3%
COPD5.2% 1.4 pts below the national average of 6.6%
Visited a dentist74.1% 12.8 pts above the national average of 61.3%
Any disability22.6% 8.1 pts below the national average of 30.7%
Lacks emotional support21.9% 2.9 pts below the national average of 24.8%
Food insecurity8.1% 9 pts below the national average of 17.1%
Received food stamps6.8% 7.5 pts below the national average of 14.3%
Hearing disability5.5% 1.2 pts below the national average of 6.7%
High cholesterol35.1% 1.1 pts below the national average of 36.2%
Housing insecurity7.7% 6.1 pts below the national average of 13.8%
Independent living disability5.7% 2.7 pts below the national average of 8.4%
Lacks transport4.9% 4.3 pts below the national average of 9.2%
Loneliness31.2% 3.2 pts below the national average of 34.4%
Mammography use73.2% 2.7 pts below the national average of 75.9%
Poor mental health (14+ days)14.6% 2.2 pts below the national average of 16.8%
Mobility disability10.1% 3.9 pts below the national average of 14%
Poor physical health (14+ days)10.7% 2.8 pts below the national average of 13.5%
Self-care disability2.5% 1.5 pts below the national average of 4%
Utility shut-off threat4.8% 4 pts below the national average of 8.8%
Sleeps under 7 hours34.2% 2.2 pts below the national average of 36.4%
Stroke2.7% 0.7 pts below the national average of 3.4%
All natural teeth lost8.1% 4.9 pts below the national average of 13%
Vision disability3.1% 2.5 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,131
People employed12,342
Annual payroll$643,269,000
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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 73.5% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 13 census tracts this ZIP code covers
Expected annual loss88.4 out of 100
Community resilience86.5 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.

Cold wave91.8Very High at its worst in this ZIP code
Tornado86.8Very High at its worst in this ZIP code
River flooding85.9Very High at its worst in this ZIP code
Drought77.3Relatively Low at its worst in this ZIP code
Landslide67.9Very Low at its worst in this ZIP code
Wildfire63.6Relatively Low at its worst in this ZIP code
Winter weather57.1Relatively Moderate at its worst in this ZIP code
Heat wave56.2Relatively High at its worst in this ZIP code
Earthquake51.3Relatively Low at its worst in this ZIP code
Lightning39.2Relatively Moderate at its worst in this ZIP code
Ice storm39Relatively Low at its worst in this ZIP code
Hail38.1Relatively Low at its worst in this ZIP code
Strong wind23.5Relatively Low at its worst in this ZIP code
Hurricane20.8Very 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$137,651$81,702$78,538
Income per person$54,243$45,104$43,289
Poverty rate5.2%11.7%12.4%
Median home value$376,500$250,500$303,400
Median gross rent$1,455$1,227$1,348
Homeownership93.6%66.8%65%
Bachelor's degree or higher48.3%37.2%35%
Unemployment rate5.2%5.8%5.2%
Works from home16.8%14%13.5%
Born outside the US6.4%14.4%13.9%
Median age42.438.938.7
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 stationPARK FOREST, IL US12.1 km away
Rain in a year42 in
Snow in a year28 in

Average high and low by month

January31.1°F / 15.2°F2.49 in rain, 10.2 in snow
February35.2°F / 18.4°F2.15 in rain, 7.5 in snow
March46.4°F / 28.1°F2.65 in rain, 4.9 in snow
April59.3°F / 38.3°F4.02 in rain, 0.5 in snow
May70.6°F / 49.3°F4.57 in rain
June80.2°F / 58.9°F4.91 in rain
July83.9°F / 63.8°F4.73 in rain
August82°F / 62°F4.02 in rain
September75.8°F / 54.6°F3.44 in rain
October63.1°F / 42.4°F3.65 in rain, 0.2 in snow
November48.2°F / 31.4°F3 in rain, 0.9 in snow
December36.3°F / 21.5°F2.47 in rain, 4 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 supermarket55% of this ZIP code's area
No vehicle and far from a supermarket4% 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 6 school districts, so the address decides which one, not the ZIP code.

Lincoln Way Community High School District 21034.4% of this ZIP code's land area
Frankfort Community Consolidated School District 157C25.5% of this ZIP code's land area
Peotone Community Unit School District 207U24.5% of this ZIP code's land area
Summit Hill School District 1618.8% of this ZIP code's land area
Rich Township High School District 2273.3% of this ZIP code's land area
Elementary School District 1593.3% 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 vulnerability12more vulnerable than 12% of US census tracts
Socioeconomic status14more vulnerable than 14% of US census tracts
Household characteristics24more vulnerable than 24% of US census tracts
Racial and ethnic minority status38more vulnerable than 38% of US census tracts
Housing type and transport18more vulnerable than 18% of US census tracts
Walkability7 out of 20Below average
Nearby ZIP codes

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

60487 Tinley Park, IL6.1 km away
60448 Mokena, IL6.2 km away
60443 Matteson, IL7 km away
60477 Tinley Park, IL8.3 km away
60471 Richton Park, IL9 km away
60478 Country Club Hills, IL10.3 km away
60431 Joliet, IL10.4 km away
60449 Monee, IL10.9 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.

Will County94.7% of this ZIP code's land area
Cook County5.3% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area37.88 sq mi
Population density866 people per sq mi
Latitude, longitude41.5094, -87.8248

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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