Illiopolis, IL · standard
ZIP Code 62539
Sangamon County, Illinois - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,358
- 11/sq mi Low-density area
- $82,750
- Median income Near-median income area
- $123,400
- Median home value Below-median home value
- 31.6%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Illiopolis pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Top 35%
- household income, US ZIPs
- 18th pct
- home value, US ZIPs
- 11
- people per sq mi
- 88%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 62539 against every reporting US ZIP.
ZIP code 62539 is a sparsely populated ZIP (a standard USPS delivery area) in Illiopolis, Sangamon County, Illinois, home to just 1,358 residents across 120.2 square miles, a density of 11 people per square mile, in the Chicago time zone.
ZIP 62539 lands in the middle-income range, with a median household income of $82,750 (3% above the average Illinois ZIP), while per-capita income is $38,220. The poverty rate is 7.2%, with unemployment at 4.1%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $123,400 (36% below the average Illinois ZIP), and median rent is $663; owner occupancy is 87.6%.
A solid share of residents have a four-year degree: 31.6% of adults hold a bachelor's degree or higher, the median age is 39.8, and the average commute is -. The page also surfaces 9 ZIP codes within roughly 10 miles and 6 more in Sangamon County, so 62539 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 62539
Top 5 sectors by establishment count in Illiopolis, IL
Which industries have the most business establishments in ZIP 62539.
- Retail trade
Retail trade
5 establishments
- Accommodation and food services
Accommodation and food services
4 establishments
- Construction
Construction
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 62539, Illiopolis, 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
1,358
Population
120.2
Area (sq mi)
11
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 62539?
39.8
Median Age
51.6%
Male
48.4%
Female
0.8%
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?
$82,750
Median Household Income
+3% vs state ZIP avg
$38,220
Per Capita Income
7.2%
Poverty Rate
4.1%
Unemployment Rate
How ZIP 62539 ranks among Illinois ZIPs
Illiopolis, 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)
$82,750 Top 38% higher than 62% 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
588housing units
588
Total Housing Units
564
Occupied Units
24
Vacant Units
2.50
Avg Household Size
Occupancy Type
$123,400
Median Home Value
-36% vs state ZIP avg
$663
Median Rent
1970
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+12.8%
YoY Change (2022)
153
HPI Index (2000 = 100)
+53%
Total Change Since 2000
Home values in ZIP 62539 have increased 12.8% over the past year (2022). Since 2000, this ZIP has seen +53% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2018 | +3.5% | 128 |
| 2019 | +1.9% | 131 |
| 2020 | +0.9% | 132 |
| 2021 | +2.5% | 135 |
| 2022 | +12.8% | 153 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2022. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 16 business establishments in ZIP 62539, employing approximately 69 people with a combined annual payroll of $1,704,000.
16
Businesses
69
Employees
$1.7M
Annual Payroll
3
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 5 | 31.3% |
| Accommodation and food services | 4 | 25.0% |
| Construction | 3 | 18.8% |
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 62539 vs 62547 →
ZIP 62539 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 62548
Mount Pulaski (62548)
2,258 residents
- 62513
Blue Mound (62513)
1,766 residents
- 62539
Illiopolis (62539)
1,358 residents
- 62545
Mechanicsburg (62545)
1,246 residents
- 62515
Buffalo (62515)
961 residents
- 62551 837
Niantic (62551)
837 residents
- 62547 804
Mount Auburn (62547)
804 residents
- 62543 540
Latham (62543)
540 residents
- 62519 94
Cornland (62519)
94 residents
What this shows Among its immediate neighbors, ZIP 62539 ranks #3 by population - useful context the national average alone can't give.
ZIP 62539 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 62545
Mechanicsburg (62545)
$84,815 median income
- 62513
Blue Mound (62513)
$83,125 median income
- 62539
Illiopolis (62539)
$82,750 median income
- 62543
Latham (62543)
$73,594 median income
- 62548
Mount Pulaski (62548)
$73,312 median income
- 62551
Niantic (62551)
$69,583 median income
- 62515
Buffalo (62515)
$62,222 median income
- 62547
Mount Auburn (62547)
$59,750 median income
What this shows By household income, ZIP 62539 ranks #3 of 8 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 62547 | Mount Auburn, IL | 804 | 6.7 mi |
| 62551 | Niantic, IL | 837 | 5.0 mi |
| 62515 | Buffalo, IL | 961 | 6.7 mi |
| 62548 | Mount Pulaski, IL | 2,258 | 7.9 mi |
| 62541 | Lake Fork, IL | 57 | 8.8 mi |
| 62543 | Latham, IL | 540 | 9.0 mi |
| 62519 | Cornland, IL | 94 | 8.8 mi |
| 62545 | Mechanicsburg, IL | 1,246 | 10.3 mi |
| 62513 | Blue Mound, IL | 1,766 | 11.3 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 62539, 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 (1,358 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Sangamon County
Related Areas
Frequently Asked Questions
What county is ZIP code 62539 in?
ZIP code 62539 (Illiopolis) is located in Sangamon County, Illinois. Sangamon County contains multiple ZIP codes, see the full list at /counties/sangamon-il.
What is the population of ZIP code 62539?
ZIP code 62539 in Illiopolis, IL has a population of 1,358 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 62539?
The median household income in ZIP 62539 is $82,750, which is 8% above the national average of $76,288.
What is the average home value in ZIP 62539?
The median home value in ZIP 62539 is $123,400, which is 56% below the national average of $278,155.
What is the demographic makeup of ZIP 62539?
The largest racial group in ZIP 62539 is White at 96.5%. Hispanic or Latino residents make up 0.4% of the population.
How many businesses are in ZIP code 62539?
ZIP code 62539 has 16 business establishments employing approximately 69 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 62539?
The top industries by establishment count in ZIP 62539 are: Retail trade (5), Accommodation and food services (4), Construction (3). There are 3 industry sectors represented in total.
How have home values changed in ZIP code 62539?
According to the FHFA House Price Index, home values in ZIP 62539 increased by 12.8% in 2022. Since 2000, home values in this ZIP have appreciated by approximately 53%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 62539?
In ZIP code 62539, 69.6% of residents aged 25+ have a high school diploma or higher, and 31.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 62539?
In ZIP code 62539, approximately 87.6% of occupied housing units are owner-occupied and 12.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 62539?
The poverty rate in ZIP code 62539 is 7.2% 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 62539's numbers, next.
- See how ZIP 62539 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Illiopolis, 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.