Residential delivery area · Michigan
ZIP Code 48390: Walled Lake, MI
ZIP code 48390 uses the postal name Walled Lake, Michigan and lies entirely in Oakland County (Census 2020 ZIP-county file). About 24,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $91,381 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Walled Lake (18%) and Wolverine Lake (10%); 72% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Walled Lake · its only residential ZIP
- County
- Oakland County
- Census places
- Walled Lake (18%); Wolverine Lake (10%)
- Metro area
- Detroit-Warren-Dearborn, MI
- House district
- MI-11 119th Congress
- State
- Michigan
- Time zone
- Eastern
- Land area
- 12.5 sq mi · 1,919 people per sq mi
- PO Box ZIPs
- 48391 also use the name Walled Lake
Where is ZIP code 48390?
48390 centers on 42.551°, -83.474° and covers 12.5 square miles of land plus 0.9 of water. It borders 5 ZIP codes: 48382, 48377, 48393, 48322, 48323.
The map draws ZIP code areas only. For the streets inside 48390, 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 48390 compare with the rest of Oakland County?
| Measure | 48390 | In Oakland County | In MI |
|---|---|---|---|
| People (ACS 2020-2024) | 23,939 | 25th of 71 | 147th of 992 |
| Median household income | $91k | 46th of 70 | 147th of 774 |
| Median home value | $309k | 52nd of 71 | 140th of 779 |
Its median household income is higher than in 74% of U.S. residential ZIP codes, and it is denser than 84% 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 48390?
The 2020 Census counted 24,273 people in 48390; the ACS, which samples households over 2020-2024, estimates 23,939. Between the 2010 and 2020 censuses its population grew 6.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 23,939
- 2020 Census count
- 24,273+6.0% since 2010 (22,898)
- Households
- 10,421
- Median age
- 43.1
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 48390?
Of the 23,939 people the ACS estimates in 48390, 18.4% are under 18 and 19.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (84.7%).
- Under 1818.4%
- 18 to 6461.9%
- 65 and older19.6%
- White, not Hispanic84.7%
- Asian, not Hispanic6.8%
- Black, not Hispanic2.9%
- Other or two or more2.9%
- Hispanic or Latino2.8%
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 48390 earn?
Median household income is $91,381 (ACS 2020-2024), the 46th highest of the 70 ranked ZIP codes in Oakland County. It is not measurably different from 2015-2019 ($89,614 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $91,381
- Income per person
- $52,744
- Below the poverty line
- 6.9%
- Unemployed (of the labor force)
- 4.4%
- Adults 25+ with a bachelor's degree
- 41.8%
- Adjusted gross income per tax return, 2022
- $96,04613,380 returns; wages 66% 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 48390?
FHFA's house price index for 48390, built from repeat sales and appraisals of the same homes, rose 91% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +5.7% in 2025.
- Median home value (owners' estimate)
- $309,400
- Median gross rent
- $1,690
- Homes owned by their occupants
- 74.7%
- Housing units
- 10,923
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 48390?
772 business establishments had a location in this ZIP code in 2023, 12 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade97
- Construction90
- Professional, scientific, and technical services87
- Other services (except public administration)86
- Health care and social assistance71
- Accommodation and food services63
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 48390?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 48382 | Commerce Township | 24,479 | $138k | 2.9 mi |
| 48377 | Novi | 19,816 | $83k | 3.1 mi |
| 48393 | Wixom | 20,145 | $66k | 4.1 mi |
| 48322 | West Bloomfield | 32,885 | $114k | 4.7 mi |
| 48323 | West Bloomfield | 17,235 | $145k | 5.1 mi |
| 48331 | Farmington | 21,562 | $128k | 4.7 mi (near) |
| 48324 | West Bloomfield | 17,098 | $142k | 5.1 mi (near) |
| 48374 | Novi | 17,672 | $183k | 5.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.
Which other ZIP codes use the name Walled Lake?
1 more ZIP code carries the postal name Walled Lake, MI without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for it.
| ZIP | County |
|---|---|
| 48391 | Oakland County |
Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.