| ZIP Codes: | 19 ZIP Codes (17 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 651 / 763 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:40 PM |
| Population: | 285,910 [See All] |
| FIPS: | 27163 |
| CBSA: | Minneapolis-St. Paul-Bloomington, MN-WI |
| Land Area: | 446 sq mi |
| Water Area: | 39 sq mi |
| Coordinates: | 45.0144, -92.9113 |
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285,910 residents live across 19 ZIPs covering 446 sq mi, served by 14 distinct USPS-recognized cities.
Population moved from 251,566 to 285,910 from 2014 to 2024 — a +13.7% change. 14 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 55042 (Lake Elmo, $154,341 median) and poorest ZIP 55055 (Newport, $71,979) are 9.7 miles apart — a 2.1× income gap across local geography.
Median home values vary 2.5× across this county — from $267,500 in 55071 (Saint Paul Park) to $673,900 in 55001 (Afton).
Density varies 42× across the county — from 67 people/sq mi in 55047 (Marine On Saint Croix) to 2,801 in 55125 (Saint Paul).
Educational attainment ranges from 24.9% bachelor's+ in 55071 (Saint Paul Park) to 68.3% in 55129 (Saint Paul) — the breadth of educational profiles across the area.
Within Minnesota, this is the #5 most populous of 93 counties and ranks #3 for median household income with the #5 fastest decade growth .
Weighted by population, the typical household earns about $119,040 across the county — reflecting what a typical resident sees, not a simple ZIP average.
48.9% of adults age 25+ hold a bachelor's degree or higher (95,322 of 195,058 reporting). The most-educated ZIPs cluster around Saint Paul.
17 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 |
|---|---|---|---|---|---|---|
| 55125 | Saint Paul | Standard | 44,185 | $119,260 | 15.8 | 2.6% |
| 55016 | Cottage Grove | Standard | 40,695 | $120,715 | 31.4 | 17.1% |
| 55082 | Stillwater | Standard | 36,277 | $115,040 | 87.5 | 2.8% |
| 55129 | Saint Paul | Standard | 34,120 | $143,795 | 19.8 | 58.7% |
| 55128 | Saint Paul | Standard | 29,384 | $93,210 | 11.6 | 2.9% |
| 55025 | Forest Lake | Standard | 25,891 | $98,382 | 84.7 | 9.5% |
| 55038 | Hugo | Standard | 25,061 | $130,931 | 54.8 | 17.1% |
| 55042 | Lake Elmo | Standard | 13,705 | $154,341 | 27.1 | 55.2% |
| 55115 | Saint Paul | Standard | 8,949 | $124,234 | 4.5 | -1.4% |
| 55071 | Saint Paul Park | Standard | 5,719 | $100,798 | 6.0 | 2.8% |
| 55055 | Newport | Standard | 4,754 | $71,979 | 3.8 | 37.6% |
| 55073 | Scandia | Standard | 4,169 | $128,723 | 29.2 | 30.2% |
| 55003 | Bayport | Standard | 3,905 | $125,893 | 2.9 | 6.3% |
| 55043 | Lakeland | Standard | 3,424 | $102,966 | 5.9 | -4.0% |
| 55001 | Afton | Standard | 3,027 | $133,581 | 27.2 | 3.5% |
| 55047 | Marine On Saint Croix | Standard | 2,244 | $107,361 | 33.5 | -18.4% |
| 55090 | Willernie | PO Box | 401 | $85,119 | 0.1 | 9.6% |
| 55083 | Stillwater | PO Box | — | — | 0.0 | — |
| 55131 | Saint Paul | Standard | — | — | 0.0 | — |