Residential delivery area · Michigan
ZIP Code 48877: Riverdale, MI
ZIP code 48877 uses the postal name Riverdale, Michigan and lies mostly in Gratiot County (46% of its land), reaching into Montcalm County and Isabella County (Census 2020 ZIP-county file). About 2,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,653 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Elm Hall (4%) and Riverdale (2%); 94% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Riverdale · its only residential ZIP
- County
- Gratiot County (46%); Montcalm County (42%); Isabella County (13%)
- Census places
- Elm Hall (4%) census-designated place; Riverdale (2%) census-designated place
- Micro area
- Alma, MI
- House district
- MI-2 119th Congress
- State
- Michigan
- Time zone
- Eastern
- Land area
- 36.9 sq mi · 53 people per sq mi
Where is ZIP code 48877?
48877 centers on 43.404°, -84.841° and covers 36.9 square miles of land plus 0.6 of water. It borders 5 ZIP codes: 48832, 48891, 48889, 48818, 48883.
The map draws ZIP code areas only. For the streets inside 48877, 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 48877 compare with the rest of Gratiot County?
| Measure | 48877 | In Gratiot County | In MI |
|---|---|---|---|
| People (ACS 2020-2024) | 1,962 | 10th of 20 | 691st of 992 |
| Median household income | $65k | 9th of 14 | 492nd of 774 |
| Median home value | $112k | 15th of 15 | 734th of 779 |
Its median household income is higher than in 38% of U.S. residential ZIP codes, and it is denser than 43% 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 48877?
The 2020 Census counted 2,300 people in 48877; the ACS, which samples households over 2020-2024, estimates 1,962. Between the 2010 and 2020 censuses its population fell 3.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,962±240 (90% margin)
- 2020 Census count
- 2,300−3.8% since 2010 (2,392)
- Households
- 815
- Median age
- 45.1
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 48877?
Of the 1,962 people the ACS estimates in 48877, 18.4% are under 18 and 22.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.6%).
- Under 1818.4%
- 18 to 6459.0%
- 65 and older22.6%
- White, not Hispanic95.6%
- Hispanic or Latino2.5%
- Other or two or more1.9%
- Black, not Hispanic0.0%
- Asian, 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 48877 earn?
Median household income is $64,653 (ACS 2020-2024), the 9th highest of the 14 ranked ZIP codes in Gratiot County. It is not measurably different from 2015-2019 ($60,103 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $64,653±$10,790
- Income per person
- $43,562
- Below the poverty line
- 18.7%
- Unemployed (of the labor force)
- 9.4%
- Adults 25+ with a bachelor's degree
- 10.7%
- Adjusted gross income per tax return, 2022
- $55,764990 returns; wages 68% 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 48877?
FHFA's house price index for 48877, built from repeat sales and appraisals of the same homes, rose 144% from 2015 to 2025 and rose 68% from 2020 to 2025.
- Median home value (owners' estimate)
- $112,300
- Median gross rent
- $636
- Homes owned by their occupants
- 92.8%
- Housing units
- 1,007
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 48877?
18 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction6
- Retail trade3
- Transportation and warehousing3
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 48877?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 48832 | Elwell | 1,307 | $73k | 3.3 mi |
| 48891 | Vestaburg | 2,915 | $51k | 3.6 mi |
| 48889 | Sumner | 1,528 | $60k | 8.4 mi |
| 48818 | Crystal | 2,554 | $56k | 9.5 mi |
| 48883 | Shepherd | 7,292 | $65k | 12.8 mi |
| 48801 | Alma | 13,278 | $59k | 8.5 mi (near) |
| 48896 | Winn | 226 | $136k | 8.7 mi (near) |
| 48829 | Edmore | 3,652 | $64k | 8.8 mi (near) |
| 48852 | McBrides | 145 | $42k | 10.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.