Flat Rock, IL · standard
ZIP Code 62427
Crawford County, Illinois - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,702
- 7/sq mi Low-density area
- $81,250
- Median income Near-median income area
- $160,700
- Median home value Below-median home value
- 8.6%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Flat Rock pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 36%
- household income, US ZIPs
- 30th pct
- home value, US ZIPs
- 7
- people per sq mi
- 94%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 62427 against every reporting US ZIP.
ZIP code 62427 covers 230.0 square miles in Flat Rock, Crawford County, Illinois (a standard USPS delivery area), with a modest 1,702 residents on file, a density of 7 people per square mile, in the Chicago time zone.
ZIP 62427 lands in the middle-income range, with a median household income of $81,250 (1% above the average Illinois ZIP), while per-capita income is $39,000. Both reported hardship measures are comparatively low in absolute terms: poverty is 6.1% and unemployment is 0.3%. Home values sit below the statewide ZIP benchmark: the median is $160,700 (16% below the average Illinois ZIP); owner occupancy is 94.3%.
Formal educational attainment runs low here: just 8.6% of adults hold a bachelor's degree or higher, the median age is 43.8, and the average commute is 34 minutes. The page also surfaces 3 ZIP codes within roughly 10 miles and 6 more in Crawford County, so 62427 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 62427
Top 5 sectors by establishment count in Flat Rock, IL
Which industries have the most business establishments in ZIP 62427.
- Mining, quarrying, and oil and gas extraction
Mining, quarrying, and oil and gas extraction
5 establishments
- Other services (except public administration)
Other services (except public administration)
5 establishments
- Manufacturing
Manufacturing
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 62427, Flat Rock, IL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
1,702
Population
230.0
Area (sq mi)
7
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 62427?
43.8
Median Age
41.4%
Male
58.6%
Female
0.1%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$81,250
Median Household Income
+1% vs state ZIP avg
$39,000
Per Capita Income
6.1%
Poverty Rate
0.3%
Unemployment Rate
33.9 min
Mean Commute Time
How ZIP 62427 ranks among Illinois ZIPs
Flat Rock, IL household income vs. every Illinois ZIP code
Median household income among 1,334 reporting Illinois ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$81,250 Top 40% higher than 60% of 1,334 Illinois ZIPs
Each bar is a $20K-wide band; taller bars hold more Illinois ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
797housing units
797
Total Housing Units
751
Occupied Units
46
Vacant Units
2.30
Avg Household Size
Occupancy Type
$160,700
Median Home Value
-16% vs state ZIP avg
1976
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 21 business establishments in ZIP 62427, employing approximately 88 people with a combined annual payroll of $3,560,000.
21
Businesses
88
Employees
$3.6M
Annual Payroll
3
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Mining, quarrying, and oil and gas extraction | 5 | 23.8% |
| Other services (except public administration) | 5 | 23.8% |
| Manufacturing | 3 | 14.3% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 62427 vs 62439 →
ZIP 62427 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 62454
Robinson (62454)
11,467 residents
- 62439
Lawrenceville (62439)
7,536 residents
- 62451 2,156
Palestine (62451)
2,156 residents
- 62427 1,702
Flat Rock (62427)
1,702 residents
What this shows Among its immediate neighbors, ZIP 62427 ranks #4 by population - useful context the national average alone can't give.
ZIP 62427 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 62427
Flat Rock (62427)
$81,250 median income
- 62454
Robinson (62454)
$74,679 median income
- 62451
Palestine (62451)
$63,665 median income
- 62439
Lawrenceville (62439)
$53,622 median income
What this shows By household income, ZIP 62427 ranks the highest of 4 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 62427, both outside IL so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,702 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Crawford County
Related Areas
Frequently Asked Questions
What county is ZIP code 62427 in?
ZIP code 62427 (Flat Rock) is located in Crawford County, Illinois. Crawford County contains multiple ZIP codes, see the full list at /counties/crawford-il.
What is the population of ZIP code 62427?
ZIP code 62427 in Flat Rock, IL has a population of 1,702 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 62427?
The median household income in ZIP 62427 is $81,250, which is 7% above the national average of $76,288.
What is the average home value in ZIP 62427?
The median home value in ZIP 62427 is $160,700, which is 42% below the national average of $278,155.
What is the demographic makeup of ZIP 62427?
The largest racial group in ZIP 62427 is White at 97.0%.
How many businesses are in ZIP code 62427?
ZIP code 62427 has 21 business establishments employing approximately 88 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 62427?
The top industries by establishment count in ZIP 62427 are: Mining, quarrying, and oil and gas extraction (5), Other services (except public administration) (5), Manufacturing (3). There are 3 industry sectors represented in total.
What is the education level in ZIP code 62427?
In ZIP code 62427, 42.6% of residents aged 25+ have a high school diploma or higher, and 8.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 62427?
The mean commute time for workers in ZIP code 62427 is 33.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 62427?
In ZIP code 62427, approximately 94.3% of occupied housing units are owner-occupied and 5.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 62427?
The poverty rate in ZIP code 62427 is 6.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 62427's numbers, next.
- See how ZIP 62427 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Flat Rock, IL ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.