| ZIP Codes: | 8 ZIP Codes (6 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 317 / 463 / 765 / 812 / 930 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:08 PM |
| Population: | 88,855 [See All] |
| FIPS: | 18109 |
| CBSA: | Indianapolis-Carmel-Greenwood, IN |
| Land Area: | 459 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 39.5086, -86.4359 |
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88,855 residents live across 8 ZIPs covering 459 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 81,768 to 88,855 from 2014 to 2024 — a +8.7% change. 7 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 46157 (Monrovia, $86,250 median) and poorest ZIP 46111 (Brooklyn, $74,167) are 9.3 miles apart — a 1.2× income gap across local geography.
Median home values vary 1.6× across this county — from $157,500 in 46166 (Paragon) to $255,100 in 46158 (Mooresville).
Density varies 34× across the county — from 75 people/sq mi in 46160 (Morgantown) to 2,511 in 46111 (Brooklyn).
Educational attainment ranges from 6.9% bachelor's+ in 46166 (Paragon) to 23.5% in 46158 (Mooresville) — the breadth of educational profiles across the area.
Within Indiana, this is the #19 most populous of 92 counties and ranks #16 for median household income with the #10 fastest decade growth .
Weighted by population, the typical household earns about $80,958 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.4% of adults age 25+ hold a bachelor's degree or higher (13,178 of 61,671 reporting).
6 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 46151 | Martinsville | Standard | 32,446 | $78,812 | 209.8 | 5.4% |
| 46158 | Mooresville | Standard | 24,878 | $81,096 | 76.7 | 11.8% |
| 46113 | Camby | Standard | 17,192 | $84,463 | 18.4 | 9.2% |
| 46160 | Morgantown | Standard | 6,514 | $76,445 | 86.9 | 3.6% |
| 46157 | Monrovia | Standard | 4,558 | $86,250 | 31.5 | 10.5% |
| 46166 | Paragon | Standard | 2,813 | $86,042 | 35.5 | 24.7% |
| 46111 | Brooklyn | PO Box | 448 | $74,167 | 0.2 | 46.4% |
| 46125 | Eminence | PO Box | 6 | — | 0.0 | -84.6% |