County ProfileOH
Clark County
Population: 136,001 · 15 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
136,001
People
Median age
41.2
Housing
Total households
55,975
Income
Median household income
$63,132
Housing
Total housing units
61,126
Employment
Employment rate
54.6%
Education
Bachelor’s degree or higher
20.2%
Healthcare
Insured population
93.4%
County details
Local time 03:13:55(ET)| Name | Clark |
|---|---|
| Total ZIP codes | 15total |
| ZIP codes (by type) | 10 Standard5 PO Box |
| Area code | 326, 937 |
| Timezone | Eastern Time (ET) |
| Coordinates | 39.9170315, -83.783676 |
| Land area | 395.9 sq miles(1,025.3 km²) |
Map of Clark county, Ohio with ZIP codes
Cities and Communities in Clark County
Compare the largest cities in Clark County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Springfield | 58,662 | $47,143 | 6ZIPs |
| New Carlisle | 5,559 | $64,443 | 1ZIPs |
| Enon | 2,449 | $96,912 | 1ZIPs |
| South Charleston | 1,706 | $49,896 | 1ZIPs |
| Medway | 627 | $90,814 | 1ZIPs |
| North Hampton | 457 | $76,528 | 1ZIPs |
| South Vienna | 402 | $69,118 | 1ZIPs |
| Tremont City | 352 | $70,500 | 1ZIPs |
| Donnelsville | 255 | $67,708 | 1ZIPs |
| Catawba | 245 | $68,500 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Clark County
Review the most populated postal areas across Clark County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 45503 | Springfield | $59,595 | 32,870 |
| 45505 | Springfield | $43,819 | 19,708 |
| 45504 | Springfield | $69,960 | 17,343 |
| 45344 | New Carlisle | $78,471 | 17,042 |
| 45502 | Springfield | $88,988 | 16,767 |
| 45506 | Springfield | $42,104 | 13,330 |
| 45323 | Enon | $80,781 | 5,123 |
| 45368 | South Charleston | $60,850 | 4,817 |
| 45341 | Medway | $56,470 | 3,741 |
| 45369 | South Vienna | $88,578 | 3,576 |
| 45372 | Tremont City | $70,500 | 352 |
| 45349 | North Hampton | $76,750 | 313 |
| 45319 | Donnelsville | $67,708 | 287 |
| 43010 | Catawba | $68,500 | 245 |
| 45501 | Springfield | — | — |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS