| County : | Allegan County |
| State : | Michigan (MI) |
| Land Area : | 825.23 sq mi |
| Water Area : | 1,008.05 sq mi |
| Latitude : | 42.5957875 |
| Longitude : | -86.6347446 |
| Population (2010): | 111,408 |
| Population Estimate (2012) : | 111,589 |
| Population Density : | 135.00/sq mi |
| Housing Units (2012) : | 49,426 |
| Median Household Income (2012) : | $51,030 (Michigan : $48,471, USA : $53,046) |
| Median Family Income (2012) : | $58,758 (Michigan : $60,749, USA : $64,585) |
| Median House Price (2012) : | $142,400 (Michigan : $128,600, USA : $181,400) |
Allegan County Cities / Towns
| Allegan City (4,998) | Douglas City (1,232) | Fennville City (1,398) |
| Holland City (33,051) | Hopkins Village (610) | Martin Village (410) |
| Otsego City (3,956) | Plainwell City (3,804) | Saugatuck City (925) |
| South Haven City (4,403) | Wayland City (4,079) |
Allegan County Zip Codes
| 49010 (17,374) | 49026 (2,186) | 49055 (6,276) |
| 49056 (4,016) | 49070 (2,451) | 49078 (8,902) |
| 49080 (15,802) | 49090 (13,810) | 49315 (19,915) |
| 49316 (20,074) | 49323 (9,410) | 49328 (3,885) |
| 49333 (11,191) | 49335 (314) | 49344 (3,410) |
| 49348 (12,153) | 49406 (884) | 49408 (9,091) |
| 49419 (7,791) | 49423 (44,977) | 49426 (33,244) |
| 49434 (20) | 49450 (3,302) | 49453 (2,626) |
| 49464 (27,481) |