| ZIP Codes: | 7 ZIP Codes (6 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 765 / 812 / 930 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:06 PM |
| Population: | 17,401 [See All] |
| FIPS: | 18047 |
| CBSA: | Cincinnati, OH-KY-IN |
| Land Area: | 312 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 39.4118, -85.0418 |
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17,401 residents live across 7 ZIPs covering 312 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 17,722 to 17,401 from 2014 to 2024 — a -1.8% change. 2 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 47036 (Oldenburg, $98,300 median) and poorest ZIP 47035 (New Trenton, $36,696) are 18.6 miles apart — a 2.7× income gap across local geography.
Median home values vary 2.7× across this county — from $151,000 in 47035 (New Trenton) to $413,700 in 47036 (Oldenburg).
Density varies 13× across the county — from 22 people/sq mi in 47010 (Bath) to 283 in 47035 (New Trenton).
Educational attainment ranges from 5.4% bachelor's+ in 47030 (Metamora) to 39.6% in 47036 (Oldenburg) — the breadth of educational profiles across the area.
Within Indiana, this is the #75 most populous of 92 counties and ranks #58 for median household income .
Weighted by population, the typical household earns about $79,353 across the county — reflecting what a typical resident sees, not a simple ZIP average.
17.2% of adults age 25+ hold a bachelor's degree or higher (2,072 of 12,031 reporting).
6 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 47012 | Brookville | Standard | 10,733 | $84,958 | 167.1 | 3.4% |
| 47024 | Laurel | Standard | 2,901 | $57,316 | 66.2 | -11.1% |
| 47030 | Metamora | Standard | 1,353 | — | 28.8 | -11.3% |
| 47036 | Oldenburg | Standard | 1,173 | $98,300 | 18.7 | 10.5% |
| 47016 | Cedar Grove | Standard | 773 | $69,880 | 20.5 | -4.7% |
| 47035 | New Trenton | PO Box | 261 | $36,696 | 0.9 | -33.9% |
| 47010 | Bath | Standard | 207 | — | 9.6 | -26.6% |