Residential delivery area · Michigan
ZIP Code 48001: Algonac, MI
ZIP code 48001 uses the postal name Algonac, Michigan and lies entirely in St. Clair County (Census 2020 ZIP-county file). About 11,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $69,160 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Pearl Beach (25%) and Algonac (8%); 67% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Algonac · its only residential ZIP
- County
- St. Clair County
- Census places
- Pearl Beach (25%) census-designated place; Algonac (8%)
- Metro area
- Detroit-Warren-Dearborn, MI
- House district
- MI-9 119th Congress
- State
- Michigan
- Time zone
- Eastern
- Land area
- 19.0 sq mi · 590 people per sq mi
Where is ZIP code 48001?
48001 centers on 42.639°, -82.582° and covers 19.0 square miles of land plus 5.1 of water. It borders 3 ZIP codes: 48039, 48028, 48023.
The map draws ZIP code areas only. For the streets inside 48001, 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 48001 compare with the rest of St. Clair County?
| Measure | 48001 | In St. Clair County | In MI |
|---|---|---|---|
| People (ACS 2020-2024) | 11,224 | 4th of 23 | 307th of 992 |
| Median household income | $69k | 16th of 21 | 409th of 774 |
| Median home value | $257k | 9th of 22 | 240th of 779 |
Its median household income is higher than in 45% of U.S. residential ZIP codes, and it is denser than 74% 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 48001?
The 2020 Census counted 11,721 people in 48001; the ACS, which samples households over 2020-2024, estimates 11,224. Between the 2010 and 2020 censuses its population fell 2.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 11,224
- 2020 Census count
- 11,721−2.2% since 2010 (11,986)
- Households
- 5,143
- Median age
- 52.4
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 48001?
Of the 11,224 people the ACS estimates in 48001, 16.6% are under 18 and 24.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.6%).
- Under 1816.6%
- 18 to 6459.2%
- 65 and older24.2%
- White, not Hispanic93.6%
- Other or two or more3.4%
- Hispanic or Latino2.3%
- Black, not Hispanic0.4%
- 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 48001 earn?
Median household income is $69,160 (ACS 2020-2024), the 16th highest of the 21 ranked ZIP codes in St. Clair County. It is not measurably different from 2015-2019 ($73,216 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $69,160±$7,849
- Income per person
- $40,403
- Below the poverty line
- 11.2%
- Unemployed (of the labor force)
- 5.3%
- Adults 25+ with a bachelor's degree
- 17.1%
- Adjusted gross income per tax return, 2022
- $71,9146,220 returns; wages 63% 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 48001?
FHFA's house price index for 48001, built from repeat sales and appraisals of the same homes, rose 101% from 2015 to 2025 and rose 46% from 2020 to 2025, and moved +10.1% in 2025.
- Median home value (owners' estimate)
- $257,400
- Median gross rent
- $944
- Homes owned by their occupants
- 86.3%
- Housing units
- 5,607
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 48001?
184 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction31
- Retail trade30
- Accommodation and food services22
- Other services (except public administration)22
- Health care and social assistance17
- Professional, scientific, and technical services16
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 48001?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 48039 | Marine City | 7,437 | $83k | 4.1 mi |
| 48028 | Harsens Island | 1,272 | $110k | 4.4 mi |
| 48023 | Fair Haven | 5,031 | $71k | 6.0 mi |
| 48054 | East China | 7,188 | $83k | 9.4 mi (near) |
| 48064 | Casco | 4,180 | $88k | 9.7 mi (near) |
| 48047 | New Baltimore | 40,302 | $95k | 10.1 mi (near) |
| 48045 | Harrison Township | 24,061 | $80k | 12.5 mi (near) |
| 48051 | New Baltimore | 17,922 | $91k | 12.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.