Residential delivery area · Michigan
ZIP Code 48320: Keego Harbor, MI
ZIP code 48320 uses the postal name Keego Harbor, Michigan and lies entirely in Oakland County (Census 2020 ZIP-county file). About 4,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $78,150 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Keego Harbor (45%), Sylvan Lake (42%) and Orchard Lake Village (8%); 4% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Keego Harbor · its only residential ZIP
- County
- Oakland County
- Census places
- Keego Harbor (45%); Sylvan Lake (42%); Orchard Lake Village (8%)
- Metro area
- Detroit-Warren-Dearborn, MI
- House district
- MI-11 119th Congress
- State
- Michigan
- Time zone
- Eastern
- Land area
- 1.1 sq mi · 3,906 people per sq mi
Where is ZIP code 48320?
48320 centers on 42.612°, -83.338° and covers 1.1 square miles of land plus 0.4 of water. It borders 4 ZIP codes: 48341, 48302, 48328, 48324.
The map draws ZIP code areas only. For the streets inside 48320, 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 48320 compare with the rest of Oakland County?
| Measure | 48320 | In Oakland County | In MI |
|---|---|---|---|
| People (ACS 2020-2024) | 4,277 | 69th of 71 | 516th of 992 |
| Median household income | $78k | 58th of 70 | 280th of 774 |
| Median home value | $346k | 39th of 71 | 97th of 779 |
Its median household income is higher than in 59% of U.S. residential ZIP codes, and it is denser than 91% 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 48320?
The 2020 Census counted 4,328 people in 48320; the ACS, which samples households over 2020-2024, estimates 4,277. Between the 2010 and 2020 censuses its population fell 5.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,277
- 2020 Census count
- 4,328−5.7% since 2010 (4,589)
- Households
- 2,161
- Median age
- 43.2
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 48320?
Of the 4,277 people the ACS estimates in 48320, 20.7% are under 18 and 21.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (79.0%).
- Under 1820.7%
- 18 to 6458.0%
- 65 and older21.3%
- White, not Hispanic79.0%
- Hispanic or Latino7.6%
- Black, not Hispanic7.3%
- Other or two or more5.8%
- Asian, not Hispanic0.3%
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 48320 earn?
Median household income is $78,150 (ACS 2020-2024), the 58th highest of the 70 ranked ZIP codes in Oakland County. It is not measurably different from 2015-2019 ($72,926 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $78,150±$12,335
- Income per person
- $59,318
- Below the poverty line
- 12.1%
- Unemployed (of the labor force)
- 4.7%
- Adults 25+ with a bachelor's degree
- 47.1%
- Adjusted gross income per tax return, 2022
- $101,8452,350 returns; wages 56% 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 48320?
FHFA's house price index for 48320, built from repeat sales and appraisals of the same homes, rose 76% from 2015 to 2025 and rose 36% from 2020 to 2025, and moved +2.4% in 2025.
- Median home value (owners' estimate)
- $345,900
- Median gross rent
- $1,214
- Homes owned by their occupants
- 69.9%
- Housing units
- 2,342
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 48320?
217 business establishments had a location in this ZIP code in 2023, 8 more than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services35
- Professional, scientific, and technical services32
- Retail trade31
- Construction22
- Administrative and support and waste management and remediation services18
- Other services (except public administration)17
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 48320?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 48341 | Pontiac | 18,924 | $51k | 2.6 mi |
| 48302 | Bloomfield Hills | 17,505 | $178k | 2.7 mi |
| 48328 | Waterford | 24,478 | $72k | 2.9 mi |
| 48324 | West Bloomfield | 17,098 | $142k | 3.1 mi |
| 48323 | West Bloomfield | 17,235 | $145k | 3.5 mi (near) |
| 48342 | Pontiac | 17,564 | $35k | 3.9 mi (near) |
| 48327 | Waterford | 20,960 | $75k | 4.1 mi (near) |
| 48340 | Pontiac | 25,669 | $48k | 4.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.