| ZIP Codes: | 15 ZIP Codes (9 Standard, 5 PO Box, 1 Unique) [See All] |
| Area Codes: | 274 / 920 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:55:41 PM |
| Population: | 172,658 [See All] |
| FIPS: | 55139 |
| CBSA: | Oshkosh-Neenah, WI |
| Land Area: | 554 sq mi |
| Water Area: | 25 sq mi |
| Coordinates: | 44.0702, -88.5945 |
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172,658 residents live across 15 ZIPs covering 554 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 167,435 to 172,658 from 2014 to 2024 — a +3.1% change. 8 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 54904 (Oshkosh, $93,341 median) and poorest ZIP 54901 (Oshkosh, $61,794) are 6.5 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.8× across this county — from $170,800 in 54902 (Oshkosh) to $300,900 in 54986 (Winneconne).
Density varies 24× across the county — from 25 people/sq mi in 54964 (Pickett) to 607 in 54952 (Menasha).
Educational attainment ranges from 23.4% bachelor's+ in 54901 (Oshkosh) to 41.8% in 54904 (Oshkosh) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #7 most populous of 73 counties and ranks #22 for median household income .
Hosts 1 single-entity Unique ZIP: 54906Miles Kimball Co .
Weighted by population, the typical household earns about $76,736 across the county — reflecting what a typical resident sees, not a simple ZIP average.
31.8% of adults age 25+ hold a bachelor's degree or higher (37,446 of 117,879 reporting).
9 Standard delivery, 5 PO Box only, 1 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 54956 | Neenah | Standard | 46,567 | $85,869 | 79.0 | 7.7% |
| 54901 | Oshkosh | Standard | 37,294 | $61,794 | 62.6 | -5.6% |
| 54952 | Menasha | Standard | 27,312 | $69,196 | 45.0 | 6.0% |
| 54904 | Oshkosh | Standard | 22,273 | $93,341 | 85.8 | 8.0% |
| 54902 | Oshkosh | Standard | 22,243 | $65,612 | 61.4 | -0.4% |
| 54963 | Omro | Standard | 7,271 | $86,227 | 86.0 | 2.9% |
| 54986 | Winneconne | Standard | 5,394 | $93,189 | 48.4 | 13.7% |
| 54947 | Larsen | Standard | 2,323 | $91,167 | 47.1 | -5.0% |
| 54964 | Pickett | Standard | 974 | $82,857 | 38.2 | -8.8% |
| 54927 | Butte Des Morts | PO Box | 540 | $128,523 | 0.2 | 26.2% |
| 54985 | Winnebago | PO Box | 249 | — | 0.2 | 203.7% |
| 54980 | Waukau | PO Box | 218 | $31,711 | 0.0 | 53.5% |
| 54906 | Oshkosh | Unique | — | — | 0.0 | — |
| 54903 | Oshkosh | PO Box | — | — | 0.0 | — |
| 54957 | Neenah | PO Box | — | — | 0.0 | — |