Residential delivery area · Michigan
ZIP Code 48064: Casco, MI
ZIP code 48064 uses the postal name Casco, Michigan and lies entirely in St. Clair County (Census 2020 ZIP-county file). About 4,200 people live there (Census Bureau, ACS 2020-2024). Median household income is $87,538 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Casco · its only residential ZIP
- County
- St. Clair County
- Metro area
- Detroit-Warren-Dearborn, MI
- House district
- MI-9 119th Congress
- State
- Michigan
- Time zone
- Eastern
- Land area
- 37.0 sq mi · 113 people per sq mi
Where is ZIP code 48064?
48064 centers on 42.765°, -82.667° and covers 37.0 square miles of land plus 0.2 of water. It borders 6 ZIP codes: 48023, 48063, 48048, 48050, 48054, 48062.
The map draws ZIP code areas only. For the streets inside 48064, 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 48064 compare with the rest of St. Clair County?
| Measure | 48064 | In St. Clair County | In MI |
|---|---|---|---|
| People (ACS 2020-2024) | 4,180 | 17th of 23 | 518th of 992 |
| Median household income | $88k | 7th of 21 | 177th of 774 |
| Median home value | $303k | 4th of 22 | 153rd of 779 |
Its median household income is higher than in 71% of U.S. residential ZIP codes, and it is denser than 56% 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 48064?
The 2020 Census counted 3,993 people in 48064; the ACS, which samples households over 2020-2024, estimates 4,180. Between the 2010 and 2020 censuses its population fell 2.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,180
- 2020 Census count
- 3,993−2.8% since 2010 (4,107)
- Households
- 1,521
- Median age
- 39.4
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 48064?
Of the 4,180 people the ACS estimates in 48064, 26.1% are under 18 and 15.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.2%).
- Under 1826.1%
- 18 to 6458.6%
- 65 and older15.3%
- White, not Hispanic95.2%
- Hispanic or Latino3.4%
- Other or two or more1.3%
- Asian, not Hispanic0.2%
- 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 48064 earn?
Median household income is $87,538 (ACS 2020-2024), the 7th highest of the 21 ranked ZIP codes in St. Clair County. It is not measurably different from 2015-2019 ($83,005 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $87,538±$11,819
- Income per person
- $38,398
- Below the poverty line
- 8.3%
- Unemployed (of the labor force)
- 5.7%
- Adults 25+ with a bachelor's degree
- 20.5%
- Adjusted gross income per tax return, 2022
- $71,1152,140 returns; wages 72% 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 48064?
FHFA's house price index for 48064, built from repeat sales and appraisals of the same homes, rose 85% from 2015 to 2025 and rose 43% from 2020 to 2025, and moved +0.8% in 2025.
- Median home value (owners' estimate)
- $303,200
- Median gross rent
- $1,091
- Homes owned by their occupants
- 94.7%
- Housing units
- 1,547
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 48064?
66 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).
- Construction23
- Retail trade9
- Administrative and support and waste management and remediation services9
- Transportation and warehousing7
- Other services (except public administration)6
- Manufacturing3
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 48064?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 48023 | Fair Haven | 5,031 | $71k | 4.2 mi |
| 48063 | Columbus | 4,206 | $94k | 6.6 mi |
| 48048 | New Haven | 11,349 | $71k | 6.9 mi |
| 48050 | New Haven | 1,338 | $91k | 6.9 mi |
| 48054 | East China | 7,188 | $83k | 7.0 mi |
| 48062 | Richmond | 9,385 | $82k | 8.9 mi |
| 48039 | Marine City | 7,437 | $83k | 7.9 mi (near) |
| 48047 | New Baltimore | 40,302 | $95k | 8.3 mi (near) |
| 48079 | Saint Clair | 12,711 | $80k | 8.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.