62427 ZIP Code — Flat Rock, IL

Crawford County, Illinois

ZIP code 62427 is located in Flat Rock, Illinois, within Crawford County. It covers approximately 84.22 square miles and serves a population of 1,948 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 618.

About ZIP code 62427

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $88,400. Owner-occupancy is high at 93%, well above the national average.

Median household income is $66,536. Poverty affects 19% of residents, above the national average. 44% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 21 minutes is near the national average.

College attainment at 11% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 62427 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.

1,948
population
84.22
sq mi land
Standard
ZIP type
Central (CT)
timezone
62427 ZIP code map
Cities in ZIP code 62427

Below are the cities the US Postal Service accepts for ZIP code 62427. Using any city not on this list may result in mail delivery delays.

City Status
Flat Rock Acceptable
Flat Rock Preferred
Nearby ZIP codes
62439 Lawrenceville (8.3 mi) 62454 Robinson (9.1 mi) 62451 Palestine (9.9 mi) 62417 Bridgeport (10 mi) 47561 Oaktown (13.3 mi) 62466 Sumner (13.5 mi) 47861 Merom (14.7 mi) 47516 Bruceville (15 mi) 47838 Carlisle (15.2 mi) 62449 Oblong (16.7 mi) 62460 Saint Francisville (16.8 mi) 62433 Hutsonville (17.4 mi)
Demographics updated 06/2026
Population
Total population 1,948
Population density 23 / sq mi
State FIPS 17
County FIPS 033
Geography
Land area 84.22 sq mi
Water area 0.34 sq mi
Latitude 38.8659
Longitude -87.6605
Timezone Central (CT)
Area code 618
Total population by age
Gender
Race & ethnicity
Economics updated 06/2026
Household income
Income range This ZIP County avg State avg
Under $50k 41.1% 48.7% 37.2%
$50k – $100k 25.6% 30.0% 29.6%
$100k – $200k 32.1% 17.9% 24.4%
Over $200k 1.2% 3.4% 8.8%

Demographics & statistics

1,948
Population
23
People per sq mi
38.2
Median age
$66,536
Median household income
$28,962
Per capita income
$88,400
Median home value
$532
Median monthly rent
92.7%
Home ownership
19.4%
Poverty rate
12.4%
Unemployment
704
Housing units
10.8%
Bachelor's or higher

Age distribution

Male Female
53
Under 5
64
118
5–9
146
44
10–14
53
25
15–19
31
43
20–24
52
116
25–34
142
127
35–44
155
73
45–54
90
31
55–59
37
74
60–64
90
84
65–74
104
74
75–84
92
13
85+
17
← Male
Female →

Age summary

GroupCount%
Under 1851626.5%
18 and over1,43273.5%
65 and over38419.7%
Median age38.2 years

Race & ethnicity

White 99.4%
Two or more races 0.5%
American Indian / Alaska Native 0.1%
GroupCount%
White1,93799.4%
Two or more races100.5%
American Indian / Alaska Native10.1%

Household income

Income range This ZIP County avg State avg
Under $50k 41.1% 48.7% 37.2%
$50k – $100k 25.6% 30.0% 29.6%
$100k – $200k 32.1% 17.9% 24.4%
Over $200k 1.2% 3.4% 8.8%
Under $10k 7.1%
$10k–$15k 5.1%
$15k–$25k 8.1%
$25k–$35k 10.5%
$35k–$50k 8.9%
$50k–$75k 15.7%
$75k–$100k 8.8%
$100k–$150k 20.8%
$150k–$200k 13.4%
$200k+ 1.6%
Range% of households
Under $10k7.1%
$10k–$15k5.1%
$15k–$25k8.1%
$25k–$35k10.5%
$35k–$50k8.9%
$50k–$75k15.7%
$75k–$100k8.8%
$100k–$150k20.8%
$150k–$200k13.4%
$200k+1.6%
Median income$66,536

Housing

Home values

Under $50k 26.3%
$50k–$100k 27.7%
$100k–$150k 7.2%
$150k–$200k 6.3%
$200k–$300k 26.7%
$300k–$500k 4.6%
$500k–$1M 1.2%

Housing overview

MetricValue
Median home value$88,400
Median rent / month$532
Owner occupied92.7%
Renter occupied7.3%
Vacant3.4%
Single-family detached82.3%
Large apartment buildings0.0%
Mobile homes17.7%
Median rooms6.4
Avg household size (owned)2.70

Year built

Era%
2020 or later0.0%
2010–20195.4%
2000–20098.1%
1990–199920.2%
1980–19897.5%
1970–197917.0%
1960–19693.7%
1950–19593.8%
1940–19496.7%
1939 or earlier27.5%

Bedrooms

Size% of units
No bedroom (studio)2.8%
1 bedroom4.0%
2 bedrooms25.5%
3 bedrooms46.4%
4 bedrooms12.2%
5+ bedrooms9.2%

Vehicles per household

Vehicles% of households
No vehicle5.6%
1 vehicle18.5%
2 vehicles34.9%
3 or more41.0%

Heating fuel

Fuel type%
Utility gas31.5%
Electricity14.9%
Propane / LP gas46.4%
Wood6.0%

Households & families

Household typeCount%
Married-couple family45662.4%
Cohabiting couple91.2%
Male householder, no spouse10614.5%
Female householder, no spouse16021.9%
Households with children under 1824333.2%
Households with seniors (65+)29039.7%
Average household size2.66

Marital status

StatusMaleFemale
Never married27.5%20.5%
Married63.8%65.1%
Separated1.3%0.0%
Widowed3.2%11.1%
Divorced4.2%3.3%

Education

Less than 9th grade 3.7%
Some HS, no diploma 6.4%
HS graduate 32.0%
Some college, no degree 25.4%
Associate's degree 21.7%
Bachelor's degree 8.6%
Graduate / professional 2.1%
Metric%
HS diploma or higher89.8%
Bachelor's or higher10.8%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool6915.3%
Kindergarten6614.7%
Elementary school22449.8%
High school337.3%
College / grad school5812.9%

Employment

Industry of employment

Manufacturing 23.8%
Education & healthcare 21.8%
Public administration 12.5%
Agriculture & mining 12.0%
Construction 7.4%
Retail trade 6.8%
Transportation & utilities 4.5%
Professional & management 4.1%
Finance & real estate 2.0%
Arts, food & hospitality 1.8%
Other services 1.8%
Wholesale trade 1.5%

Occupation

Category%
Management, business & arts25.7%
Service14.2%
Sales & office13.2%
Natural resources & construction14.9%
Production & transportation32.0%

Employment type

Type%
Private sector69.5%
Government20.1%
Self-employed9.7%
Unpaid family workers0.7%

Commute

Method%
Drive alone78.0%
Carpool7.0%
Public transit2.3%
Walk4.2%
Work from home2.0%
Other means6.4%
Avg commute (minutes)20.7

Poverty

All people 19.4%
Under 18 years 18.7%
18 and over 19.6%
Married-couple families 5.9%
Female-led households 63.6%

Income support

Source% of households
Social Security44.2%
Retirement income32.1%
Supplemental Security7.5%
Cash public assistance0.0%
Food stamps / SNAP12.4%

Health indicators

Condition%
Obesity34.9%
High blood pressure33.3%
High cholesterol33.9%
Diabetes9.8%
Heart disease6.8%
Stroke3.1%
Asthma9.6%
Arthritis27.7%
Kidney disease2.9%
Pulmonary disease7.3%
Cancer7.4%
Behavior / access%
Smoking18.0%
Binge drinking15.6%
No physical activity23.9%
Less than 7 hrs sleep32.0%
Depression17.8%
Fair or poor health13.5%
Poor mental health12.7%
Poor physical health9.8%
No health insurance10.1%
Visited doctor (checkup)76.7%
Visited dentist66.5%
Cholesterol screening90.0%
Teeth loss13.5%

Veterans & disability

VeteransCount%
Civilian veterans1178.2%
Disability%
Any disability18.4%
Under 1814.3%
18–64 years13.7%
65 and over36.5%

Health insurance coverage

Type%
Private insurance64.3%
Public insurance41.4%
No insurance11.8%
Uninsured under 1917.1%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only1,83194.0%
Spanish110.6%
Other Indo-European00.0%
Asian & Pacific Islander110.6%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)1,94099.6%
Born in same state1,94099.6%
Born in different state1,13358.2%
Foreign born00.0%
Naturalized citizen80.4%
Not a US citizen8100.0%

Ancestry

AncestryCount%
French23111.9%
Arab21911.2%
Italian1718.8%
AncestryCount%
English201%
Polish100.5%

Technology access

Metric% of households
Computer access37.5%
Internet access87.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 62427

What city is ZIP code 62427 in?

ZIP code 62427 is primarily assigned to Flat Rock, Illinois.

What county is ZIP code 62427 in?

ZIP code 62427 falls within Crawford County, Illinois.

Is ZIP code 62427 mostly owner-occupied?

93% of occupied units in ZIP code 62427 are owner-occupied, well above the national average.

How educated is the population of ZIP code 62427?

11% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the poverty rate in ZIP code 62427?

19% of residents in ZIP code 62427 live below the poverty line, above the national average.

Does ZIP code 62427 have a large retiree population?

44% of households in ZIP code 62427 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 62427 in?

ZIP code 62427 observes the CST timezone.

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