| ZIP Codes: | 6 ZIP Codes (6 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 219 / 574 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:27 PM |
| Population: | 21,544 [See All] |
| FIPS: | 18149 |
| Land Area: | 319 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 41.2739, -86.6591 |
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21,544 residents live across 6 ZIPs covering 319 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 21,581 to 21,544 from 2014 to 2024 — a -0.2% change. 3 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 46374 (San Pierre, $91,250 median) and poorest ZIP 46531 (Grovertown, $57,786) are 22.2 miles apart — a 1.6× income gap across local geography.
Median home values vary 1.7× across this county — from $136,500 in 46366 (North Judson) to $226,900 in 46374 (San Pierre).
Educational attainment ranges from 7.4% bachelor's+ in 46531 (Grovertown) to 16.0% in 46532 (Hamlet) — the breadth of educational profiles across the area.
Within Indiana, this is the #67 most populous of 92 counties and ranks #49 for median household income .
Weighted by population, the typical household earns about $65,548 across the county — reflecting what a typical resident sees, not a simple ZIP average.
11.9% of adults age 25+ hold a bachelor's degree or higher (1,769 of 14,858 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 |
|---|---|---|---|---|---|---|
| 46534 | Knox | Standard | 10,811 | $63,138 | 127.0 | -2.1% |
| 46366 | North Judson | Standard | 5,601 | $60,182 | 77.5 | -1.1% |
| 46532 | Hamlet | Standard | 1,921 | $84,866 | 55.6 | -11.8% |
| 46531 | Grovertown | Standard | 1,825 | $57,786 | 22.1 | 15.7% |
| 46374 | San Pierre | Standard | 1,290 | $91,250 | 36.0 | 24.2% |
| 46968 | Ora | Standard | 96 | — | 0.7 | 21.5% |