Residential delivery area · Minnesota
ZIP Code 55723: Cook, MN
ZIP code 55723 uses the postal name Cook, Minnesota and lies mostly in St. Louis County (72% of its land) with the rest in Itasca County (Census 2020 ZIP-county file). About 1,900 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,526 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Cook; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Cook · its only residential ZIP
- County
- St. Louis County (72%); Itasca County (28%)
- Census places
- Cook
- Metro area
- Duluth, MN-WI
- House district
- MN-8 119th Congress
- State
- Minnesota
- Time zone
- Central
- Land area
- 393.7 sq mi · 5 people per sq mi
Where is ZIP code 55723?
55723 centers on 47.840°, -92.857° and covers 393.7 square miles of land plus 23.2 of water. It borders 7 ZIP codes: 55703, 55781, 55771, 55790, 55769, 56639, 56628.
The map draws ZIP code areas only. For the streets inside 55723, 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 55723 compare with the rest of St. Louis County?
| Measure | 55723 | In St. Louis County | In MN |
|---|---|---|---|
| People (ACS 2020-2024) | 1,927 | 24th of 51 | 422nd of 881 |
| Median household income | $65k | 18th of 31 | 464th of 545 |
| Median home value | $190k | 15th of 32 | 453rd of 558 |
Its median household income is higher than in 38% of U.S. residential ZIP codes, and it is denser than 10% 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 55723?
The 2020 Census counted 2,222 people in 55723; the ACS, which samples households over 2020-2024, estimates 1,927. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 1,927±308 (90% margin)
- 2020 Census count
- 2,222
- Households
- 947
- Median age
- 60.3
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 55723?
Of the 1,927 people the ACS estimates in 55723, 15.5% are under 18 and 40.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.0%).
- Under 1815.5%
- 18 to 6444.4%
- 65 and older40.2%
- White, not Hispanic96.0%
- Other or two or more3.3%
- Hispanic or Latino0.6%
- Asian, not Hispanic0.1%
- Black, not Hispanic0.0%
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 55723 earn?
Median household income is $64,526 (ACS 2020-2024), the 18th highest of the 31 ranked ZIP codes in St. Louis County.
- Median household income
- $64,526±$6,626
- Income per person
- $40,887
- Below the poverty line
- 16.6%
- Unemployed (of the labor force)
- 8.0%
- Adults 25+ with a bachelor's degree
- 25.5%
- Adjusted gross income per tax return, 2022
- $75,5021,180 returns; wages 49% 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 55723?
FHFA's house price index for 55723, built from repeat sales and appraisals of the same homes, rose 95% from 2015 to 2025 and rose 68% from 2020 to 2025, and moved +12.5% in 2025.
- Median home value (owners' estimate)
- $189,700
- Median gross rent
- $550
- Homes owned by their occupants
- 87.2%
- Housing units
- 2,044
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 55723?
102 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade19
- Accommodation and food services18
- Construction17
- Other services (except public administration)11
- Health care and social assistance7
- Finance and insurance6
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 55723?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 55703 | Angora | 906 | $72k | 9.0 mi |
| 55781 | Side Lake | 821 | $101k | 14.7 mi |
| 55771 | Orr | 1,484 | $68k | 19.2 mi |
| 55790 | Tower | 1,847 | $77k | 22.3 mi |
| 55769 | Nashwauk | 2,219 | $66k | 29.2 mi |
| 56639 | Effie | 359 | $31k | 31.9 mi |
| 56628 | Bigfork | 1,675 | $61k | 32.8 mi |
| 55710 | Britt | 1,362 | $87k | 15.1 mi (near) |
| 55719 | Chisholm | 5,613 | $54k | 20.7 mi (near) |
| 55772 | Nett Lake | 77 | – | 21.8 mi (near) |
| 55768 | Mountain Iron | 2,964 | $86k | 22.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.