| ZIP Codes: | 13 ZIP Codes (13 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 274 / 534 / 715 / 920 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:19 PM |
| Population: | 44,449 [See All] |
| FIPS: | 55075 |
| CBSA: | Marinette, WI-MI |
| Land Area: | 1,559 sq mi |
| Water Area: | 38 sq mi |
| Coordinates: | 45.3555, -88.0195 |
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44,449 residents live across 13 ZIPs covering 1,559 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 43,919 to 44,449 from 2014 to 2024 — a +1.2% change. 6 ZIPs gained residents, 7 lost.
The county's wealthiest ZIP 54112 (Coleman, $71,141 median) and poorest ZIP 54102 (Amberg, $41,917) are 31.4 miles apart — a 1.7× income gap across local geography.
Median home values vary 1.9× across this county — from $100,000 in 54125 (Goodman) to $190,500 in 54161 (Pound).
Density varies 46× across the county — from 5 people/sq mi in 54125 (Goodman) to 224 in 54143 (Marinette).
Educational attainment ranges from 7.7% bachelor's+ in 54102 (Amberg) to 24.3% in 54143 (Marinette) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #35 most populous of 73 counties and ranks #66 for median household income .
Weighted by population, the typical household earns about $64,245 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.8% of adults age 25+ hold a bachelor's degree or higher (6,616 of 33,487 reporting).
13 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 54143 | Marinette | Standard | 15,119 | $64,491 | 67.6 | 2.9% |
| 54157 | Peshtigo | Standard | 5,951 | $70,469 | 92.6 | -2.6% |
| 54114 | Crivitz | Standard | 5,926 | $59,217 | 252.8 | 11.2% |
| 54151 | Niagara | Standard | 3,411 | $69,511 | 125.3 | 0.2% |
| 54177 | Wausaukee | Standard | 2,913 | $62,991 | 178.8 | 2.3% |
| 54112 | Coleman | Standard | 2,716 | $71,141 | 64.4 | 24.3% |
| 54161 | Pound | Standard | 2,595 | $68,415 | 134.2 | -10.1% |
| 54156 | Pembine | Standard | 1,502 | $49,625 | 109.4 | 11.7% |
| 54159 | Porterfield | Standard | 1,381 | $69,375 | 68.3 | -6.9% |
| 54104 | Athelstane | Standard | 1,027 | $56,286 | 183.5 | -4.9% |
| 54102 | Amberg | Standard | 763 | $41,917 | 102.1 | -10.1% |
| 54119 | Dunbar | Standard | 715 | $54,375 | 90.9 | -35.1% |
| 54125 | Goodman | Standard | 430 | $46,429 | 89.1 | -29.2% |