Residential delivery area · Wisconsin
ZIP Code 54840: Grantsburg, WI
ZIP code 54840 uses the postal name Grantsburg, Wisconsin and lies mostly in Burnett County (88% of its land) with the rest in Polk County (Census 2020 ZIP-county file). About 4,800 people live there (Census Bureau, ACS 2020-2024). Median household income is $63,750 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Grantsburg; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Grantsburg · its only residential ZIP
- County
- Burnett County (88%); Polk County (12%)
- Census places
- Grantsburg
- House district
- WI-7 119th Congress
- State
- Wisconsin
- Time zone
- Central
- Land area
- 255.2 sq mi · 19 people per sq mi
Where is ZIP code 54840?
54840 centers on 45.751°, -92.692° and covers 255.2 square miles of land plus 9.7 of water. It borders 12 ZIP codes: 54006, 55063, 55069, 54872, 54853, 54837, 54024, 55032, 55037, 54893 and more.
The map draws ZIP code areas only. For the streets inside 54840, 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 54840 compare with the rest of Burnett County?
| Measure | 54840 | In Burnett County | In WI |
|---|---|---|---|
| People (ACS 2020-2024) | 4,775 | 2nd of 11 | 279th of 783 |
| Median household income | $64k | 5th of 9 | 507th of 610 |
| Median home value | $186k | 9th of 9 | 499th of 612 |
Its median household income is higher than in 36% of U.S. residential ZIP codes, and it is denser than 25% 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 54840?
The 2020 Census counted 4,702 people in 54840; the ACS, which samples households over 2020-2024, estimates 4,775. Between the 2010 and 2020 censuses its population grew 1.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,775
- 2020 Census count
- 4,702+1.3% since 2010 (4,643)
- Households
- 1,821
- Median age
- 45.2
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 54840?
Of the 4,775 people the ACS estimates in 54840, 20.0% are under 18 and 22.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.6%).
- Under 1820.0%
- 18 to 6457.7%
- 65 and older22.3%
- White, not Hispanic90.6%
- Other or two or more5.1%
- Black, not Hispanic1.8%
- Hispanic or Latino1.5%
- Asian, not Hispanic0.9%
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 54840 earn?
Median household income is $63,750 (ACS 2020-2024), the 5th highest of the 9 ranked ZIP codes in Burnett County. It is not measurably different from 2015-2019 ($69,034 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $63,750
- Income per person
- $39,801
- Below the poverty line
- 12.0%
- Unemployed (of the labor force)
- 6.0%
- Adults 25+ with a bachelor's degree
- 19.6%
- Adjusted gross income per tax return, 2022
- $67,3242,280 returns; wages 67% 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 54840?
FHFA's house price index for 54840, built from repeat sales and appraisals of the same homes, rose 120% from 2015 to 2025 and rose 61% from 2020 to 2025, and moved +12.7% in 2025.
- Median home value (owners' estimate)
- $186,200
- Median gross rent
- $822
- Homes owned by their occupants
- 85.3%
- Housing units
- 2,778
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 54840?
113 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade17
- Manufacturing14
- Other services (except public administration)13
- Accommodation and food services12
- Construction10
- Health care and social assistance10
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 54840?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 54006 | Cushing | 852 | $70k | 11.3 mi |
| 55063 | Pine City, MN | 9,212 | $75k | 11.8 mi |
| 55069 | Rush City, MN | 5,836 | $75k | 13.9 mi |
| 54872 | Siren | 2,569 | $61k | 14.6 mi |
| 54853 | Luck | 3,506 | $75k | 16.5 mi |
| 54837 | Frederic | 3,803 | $71k | 17.0 mi |
| 54024 | Saint Croix Falls | 5,035 | $75k | 17.4 mi |
| 55032 | Harris, MN | 3,416 | $105k | 18.3 mi |
| 55037 | Hinckley, MN | 5,215 | $68k | 18.4 mi |
| 54893 | Webster | 4,207 | $56k | 19.7 mi |
| 55056 | North Branch, MN | 14,753 | $96k | 21.0 mi |
| 54830 | Danbury | 3,526 | $67k | 33.2 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.