| County : | Marathon County |
| State : | Wisconsin (WI) |
| Land Area : | 1,544.97 sq mi |
| Water Area : | 31.33 sq mi |
| Latitude : | 44.8980363 |
| Longitude : | -89.7578230 |
| Population (2010): | 134,063 |
| Population Estimate (2012) : | 134,041 |
| Population Density : | 86.77/sq mi |
| Housing Units (2012) : | 57,734 |
| Median Household Income (2012) : | $53,762 (Wisconsin : $52,627, USA : $53,046) |
| Median Family Income (2012) : | $65,540 (Wisconsin : $66,415, USA : $64,585) |
| Median House Price (2012) : | $142,600 (Wisconsin : $169,000, USA : $181,400) |
Marathon County Cities / Towns
| Abbotsford City (2,310) | Athens Village (1,105) | Birnamwood Village (818) |
| Brokaw Village (251) | Colby City (1,852) | Dorchester Village (876) |
| Edgar Village (1,479) | Elderon Village (179) | Fenwood Village (152) |
| Hatley Village (574) | Knowlton (120) | Kronenwetter Village (7,210) |
| Marathon City Village (1,524) | Marshfield City (19,118) | Mosinee City (3,988) |
| Rib Mountain (5,651) | Rothschild Village (5,269) | Schofield City (2,169) |
| Spencer Village (1,925) | Stratford Village (1,578) | Unity Village (343) |
| Wausau City (39,106) | Weston Village (14,868) |
Marathon County Zip Codes
| 54401 (30,702) | 54403 (24,272) | 54405 (3,032) |
| 54408 (1,068) | 54409 (13,238) | 54411 (5,406) |
| 54412 (2,181) | 54414 (3,404) | 54417 (46) |
| 54421 (3,455) | 54425 (2,036) | 54426 (4,479) |
| 54427 (1,099) | 54440 (2,964) | 54443 (2,137) |
| 54448 (4,249) | 54449 (26,418) | 54451 (11,755) |
| 54452 (19,360) | 54455 (17,029) | 54471 (1,854) |
| 54473 (2,700) | 54474 (4,019) | 54476 (18,580) |
| 54479 (4,119) | 54480 (1,332) | 54484 (4,984) |
| 54488 (1,262) | 54499 (3,223) |