| ZIP Codes: | 6 ZIP Codes (6 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 812 / 930 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:26 PM |
| Population: | 21,794 [See All] |
| FIPS: | 18129 |
| CBSA: | Evansville, IN |
| Land Area: | 450 sq mi |
| Water Area: | 13 sq mi |
| Coordinates: | 38.1234, -87.8114 |
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21,794 residents live across 6 ZIPs covering 450 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 22,174 to 21,794 from 2014 to 2024 — a -1.7% change. 2 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 47638 (Wadesville, $93,958 median) and poorest ZIP 47631 (New Harmony, $66,058) are 7.2 miles apart — a 1.4× income gap across local geography.
Median home values vary 2.3× across this county — from $122,300 in 47612 (Cynthiana) to $282,700 in 47638 (Wadesville).
Density varies 16× across the county — from 5 people/sq mi in 47616 (Griffin) to 74 in 47638 (Wadesville).
Educational attainment ranges from 18.8% bachelor's+ in 47633 (Poseyville) to 30.5% in 47616 (Griffin) — the breadth of educational profiles across the area.
Within Indiana, this is the #66 most populous of 92 counties and ranks #31 for median household income .
Weighted by population, the typical household earns about $76,933 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.3% of adults age 25+ hold a bachelor's degree or higher (3,622 of 15,554 reporting).
6 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 47620 | Mount Vernon | Standard | 12,361 | $75,681 | 216.4 | -3.4% |
| 47638 | Wadesville | Standard | 3,633 | $93,958 | 48.8 | 8.5% |
| 47633 | Poseyville | Standard | 2,602 | $68,971 | 61.6 | -15.5% |
| 47631 | New Harmony | Standard | 2,148 | $66,058 | 60.3 | 23.9% |
| 47612 | Cynthiana | Standard | 818 | $73,438 | 14.1 | -15.0% |
| 47616 | Griffin | Standard | 232 | $79,375 | 48.5 | -9.7% |