| Zip Code : | 48837 |
| City : | Grand Ledge city, Lansing city, Wacousta |
| County : | Ionia County, Clinton County, Eaton County |
| State : | Michigan (MI) |
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| Land Area : | 79.49 sq mi |
| Water Area : | 0.74 sq mi |
| Latitude : | 42.7467281 |
| Longitude : | -84.7706008 |
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| Population (2010): | 18,926 |
| Population Estimate (2012) : | 18,511 |
| Population Density : | 238.10/sq mi |
| Housing Units (2012) : | 8,050 |
| Median Household Income (2012) : | $64,355 (Michigan : $48,471, USA : $53,046) |
| Median Family Income (2012) : | $78,217 (Michigan : $60,749, USA : $64,585) |
| Median House Price (2012) : | $162,000 (Michigan : $128,600, USA : $181,400) |