Mendon, IL · standard
ZIP Code 62351
Adams County, Illinois — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,856
- 10/sq mi
- $77,298
- Median income
- $147,800
- Median home value
- 20.4%
- Bachelor's or higher
The verdict
Mendon pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 42%
- household income, US ZIPs
- 25th pct
- home value, US ZIPs
- 10
- people per sq mi
- 87%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 62351 against every reporting US ZIP.
ZIP code 62351 is classified by USPS as a standard delivery area and covers roughly 191.3 square miles in Mendon, Adams County, Illinois. The area is home to 1,856 residents, producing a population density of 10 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 62351 against Illinois and the nation.
On the economic side, the median household income for ZIP 62351 sits at $77,298 (3% below the Illinois average), while per-capita income is $37,871. The poverty rate stands at 9.7% and the unemployment rate at 3.4%. On housing, the median home value is $147,800 (23% below the state average) with median rent at $667 per month, and 86.6% of occupied units are owner-occupied, a direct signal of whether 62351 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 20.4% of adults hold a bachelor's degree or higher, the median age is 39.9, and the average commute is —. We also surface 7 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Adams County, so you can benchmark 62351 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 62351
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 62351.
- Other services (except public administration)
Other services (except public administration)
8 establishments
- Construction
Construction
6 establishments
- Retail trade
Retail trade
6 establishments
- Wholesale trade 3
Wholesale trade
3 establishments
- Finance and insurance 3
Finance and insurance
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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 62351, Mendon, IL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
1,856
Population
191.3
Area (sq mi)
10
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 62351?
39.9
Median Age
48.5%
Male
51.5%
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?
$77,298
Median Household Income
-3% vs state
$37,871
Per Capita Income
9.7%
Poverty Rate
3.4%
Unemployment Rate
How ZIP 62351 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$77,298 Top 42% higher than 58% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US 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?
823
Total Housing Units
759
Occupied Units
64
Vacant Units
2.49
Avg Household Size
Occupancy Type
$147,800
Median Home Value
-23% vs state
$667
Median Rent
1970
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 35 business establishments in ZIP 62351, employing approximately 204 people with a combined annual payroll of $9,202,000.
35
Businesses
204
Employees
$9.2M
Annual Payroll
6
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Other services (except public administration) | 8 | 22.9% |
| Construction | 6 | 17.1% |
| Retail trade | 6 | 17.1% |
| Wholesale trade | 3 | 8.6% |
| Finance and insurance | 3 | 8.6% |
| Accommodation and food services | 3 | 8.6% |
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 62351 vs 62349 →
ZIP 62351 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 62351
Mendon (62351)
1,856 residents
- 62338
Fowler (62338)
1,473 residents
- 62349 636
Loraine (62349)
636 residents
- 62325 403
Coatsburg (62325)
403 residents
- 62380 401
West Point (62380)
401 residents
- 62373 300
Sutter (62373)
300 residents
- 62348 170
Lima (62348)
170 residents
- 62359 166
Paloma (62359)
166 residents
What this shows Among its immediate neighbors, ZIP 62351 ranks the most populous — useful context the national average alone can't give.
ZIP 62351 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 62373
Sutter (62373)
$110,568 median income
- 62338
Fowler (62338)
$91,473 median income
- 62348
Lima (62348)
$77,969 median income
- 62351
Mendon (62351)
$77,298 median income
- 62325
Coatsburg (62325)
$75,469 median income
- 62380
West Point (62380)
$75,000 median income
- 62349
Loraine (62349)
$67,981 median income
- 62359
Paloma (62359)
$51,413 median income
What this shows By household income, ZIP 62351 ranks #4 of 8 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
More ZIP Codes in Adams County
Related Areas
Frequently Asked Questions
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ZIP Code Research Guides
Official Data Resources for Mendon, IL
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.