| ZIP Codes: | 11 ZIP Codes (9 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 517 / 989 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:31 PM |
| Population: | 84,821 [See All] |
| FIPS: | 26037 |
| CBSA: | Lansing-East Lansing, MI |
| Land Area: | 564 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 42.9616, -84.5866 |
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84,821 residents live across 11 ZIPs covering 564 sq mi, served by 11 distinct USPS-recognized cities.
Population moved from 84,180 to 84,821 from 2014 to 2024 — a +0.8% change. 5 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 48820 (Dewitt, $112,526 median) and poorest ZIP 48853 (Maple Rapids, $51,607) are 17.6 miles apart — a 2.2× income gap across local geography.
Median home values vary 2.6× across this county — from $128,900 in 48853 (Maple Rapids) to $337,100 in 48820 (Dewitt).
Density varies 28× across the county — from 40 people/sq mi in 48831 (Elsie) to 1,111 in 48853 (Maple Rapids).
Educational attainment ranges from 9.0% bachelor's+ in 48853 (Maple Rapids) to 47.4% in 48820 (Dewitt) — the breadth of educational profiles across the area.
Within Michigan, this is the #24 most populous of 83 counties and ranks #17 for median household income .
Weighted by population, the typical household earns about $81,231 across the county — reflecting what a typical resident sees, not a simple ZIP average.
31.3% of adults age 25+ hold a bachelor's degree or higher (18,515 of 59,085 reporting).
9 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 48906 | Lansing | Standard | 25,901 | $64,315 | 32.4 | -0.6% |
| 48879 | Saint Johns | Standard | 18,413 | $79,129 | 187.6 | -0.3% |
| 48820 | Dewitt | Standard | 18,357 | $112,526 | 67.0 | 6.0% |
| 48808 | Bath | Standard | 6,527 | $78,370 | 26.8 | 12.2% |
| 48866 | Ovid | Standard | 4,607 | $65,281 | 49.1 | -5.9% |
| 48831 | Elsie | Standard | 3,088 | $63,299 | 77.5 | -12.0% |
| 48835 | Fowler | Standard | 2,635 | $81,964 | 53.8 | 2.6% |
| 48822 | Eagle | Standard | 2,379 | $91,299 | 32.4 | -18.1% |
| 48894 | Westphalia | Standard | 2,193 | $101,923 | 36.4 | 10.2% |
| 48853 | Maple Rapids | PO Box | 721 | $51,607 | 0.6 | 9.4% |
| 48833 | Eureka | PO Box | — | — | 0.0 | — |