Residential delivery area · Minnesota
ZIP Code 55371: Princeton, MN
ZIP code 55371 uses the postal name Princeton, Minnesota and lies mostly in Mille Lacs County (42% of its land), reaching into Sherburne County, Isanti County and Benton County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $93,824 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Princeton; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Princeton · its only residential ZIP
- County
- Mille Lacs County (42%); Sherburne County (30%); Isanti County (26%); Benton County (2%)
- Census places
- Princeton
- Metro area
- Minneapolis-St. Paul-Bloomington, MN-WI
- House districts
- MN-8 (68%), MN-6 (32%) 119th Congress, by share of land
- State
- Minnesota
- Time zone
- Central
- Land area
- 196.0 sq mi · 92 people per sq mi
Where is ZIP code 55371?
55371 centers on 45.576°, -93.589° and covers 196.0 square miles of land plus 5.9 of water. It borders 10 ZIP codes: 55398, 55017, 56357, 55008, 55309, 56353, 55308, 55040, 56329, 55319.
The map draws ZIP code areas only. For the streets inside 55371, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 55371 compare with the rest of Mille Lacs County?
| Measure | 55371 | In Mille Lacs County | In MN |
|---|---|---|---|
| People (ACS 2020-2024) | 18,103 | 1st of 12 | 108th of 881 |
| Median household income | $94k | 2nd of 8 | 168th of 545 |
| Median home value | $327k | 1st of 8 | 186th of 558 |
Its median household income is higher than in 77% of U.S. residential ZIP codes, and it is denser than 53% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 55371?
The 2020 Census counted 17,132 people in 55371; the ACS, which samples households over 2020-2024, estimates 18,103. Between the 2010 and 2020 censuses its population grew 4.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 18,103
- 2020 Census count
- 17,132+4.2% since 2010 (16,442)
- Households
- 6,440
- Median age
- 39.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 55371?
Of the 18,103 people the ACS estimates in 55371, 24.8% are under 18 and 17.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.7%).
- Under 1824.8%
- 18 to 6458.1%
- 65 and older17.1%
- White, not Hispanic91.7%
- Other or two or more5.1%
- Hispanic or Latino2.2%
- Asian, not Hispanic1.0%
- Black, not Hispanic0.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 55371 earn?
Median household income is $93,824 (ACS 2020-2024), the 2nd highest of the 8 ranked ZIP codes in Mille Lacs County. It is not measurably different from 2015-2019 ($87,849 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $93,824
- Income per person
- $38,223
- Below the poverty line
- 6.4%
- Unemployed (of the labor force)
- 2.5%
- Adults 25+ with a bachelor's degree
- 19.6%
- Adjusted gross income per tax return, 2022
- $73,9298,710 returns; wages 75% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 55371?
FHFA's house price index for 55371, built from repeat sales and appraisals of the same homes, rose 96% from 2015 to 2025 and rose 42% from 2020 to 2025, and moved +3.1% in 2025.
- Median home value (owners' estimate)
- $327,200
- Median gross rent
- $975
- Homes owned by their occupants
- 84.9%
- Housing units
- 6,972
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 55371?
501 business establishments had a location in this ZIP code in 2023, 56 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction124
- Other services (except public administration)51
- Health care and social assistance48
- Manufacturing46
- Retail trade44
- Accommodation and food services33
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 55371?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 55398 | Zimmerman | 17,688 | $103k | 8.1 mi |
| 55017 | Dalbo | 799 | $62k | 9.9 mi |
| 56357 | Oak Park | 1,230 | $115k | 12.9 mi |
| 55008 | Cambridge | 16,729 | $85k | 15.1 mi |
| 55309 | Big Lake | 21,378 | $122k | 15.3 mi |
| 56353 | Milaca | 9,546 | $79k | 15.9 mi |
| 55308 | Becker | 10,321 | $107k | 16.3 mi |
| 55040 | Isanti | 14,837 | $91k | 16.8 mi |
| 56329 | Foley | 7,778 | $93k | 18.2 mi |
| 55319 | Clear Lake | 5,185 | $112k | 19.0 mi |
| 56363 | Pease | 238 | $68k | 8.9 mi (near) |
| 56313 | Bock | 49 | $48k | 14.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.