| Back to United States. City: Janesville, WI Population (2000): 41,957
Housing units: 17,598 Land area: 96.9 sq. mi. Water area: 0.3 sq. mi. White population: 39879 Black population: 615 American Indian population: 117 Asian population: 387 Native Hawaiian and Other Pacific Islander population: 15 Some other race population: 390 Two or more races population: 554 Urban population: 36425 Rural population: 5532 Median age: 36.3 Average household size: 2.42 Median household income (1999): $44346
 
Nearest zip codes: 53546, 53563, 53534, 53511, 53537, 61080.
Year house built:
- 1999 to March 2000: 197
- 1995 to 1998: 984
- 1990 to 1994: 956
- 1980 to 1989: 1164
- 1970 to 1979: 2859
- 1960 to 1969: 2824
- 1950 to 1959: 2107
- 1940 to 1949: 1115
- 1939 or earlier: 5427
Bedrooms in owner-occupied houses in Janesville, WI (53545):
- no bedroom: 8
- 1 bedrooms: 239
- 2 bedrooms: 2265
- 3 bedrooms: 6344
- 4 bedrooms: 2076
- 5 or more bedrooms: 512
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 169
- 1 bedrooms: 1563
- 2 bedrooms: 2429
- 3 bedrooms: 1032
- 4 bedrooms: 158
- 5 or more bedrooms: 34
Vehicles available in 53545 zip code in owner-occupied houses:
- no vehicle: 329
- 1 vehicle: 2923
- 2 vehicles: 5655
- 3 vehicles: 1889
- 4 vehicles: 454
- 5 or more vehicles: 194
Vehicles available in renter-occupied housing units:
- no vehicle: 844
- 1 vehicle: 2742
- 2 vehicles: 1518
- 3 vehicles: 254
- 4 vehicles: 27
- 5 or more vehicles: 0
Estimate of home value of owner-occupied houses in 2000 in zip code 53545:
- Less than $10,000: 13
- $10,000 to $14,999: 0
- $15,000 to $19,999: 0
- $20,000 to $24,999: 12
- $25,000 to $29,999: 6
- $30,000 to $34,999: 8
- $35,000 to $39,999: 46
- $40,000 to $49,999: 150
- $50,000 to $59,999: 256
- $60,000 to $69,999: 647
- $70,000 to $79,999: 886
- $80,000 to $89,999: 1519
- $90,000 to $99,999: 1624
- $100,000 to $124,999: 2143
- $125,000 to $149,999: 1288
- $150,000 to $174,999: 578
- $175,000 to $199,999: 416
- $200,000 to $249,999: 385
- $250,000 to $299,999: 152
- $300,000 to $399,999: 112
- $400,000 to $499,999: 22
- $500,000 to $749,999: 19
- $750,000 to $999,999: 0
- $1,000,000 or more: 6
First ancestries reported:
- German: 12280
- Norwegian: 4793
- Irish: 3868
- English: 2726
- Other groups: 2408
- United States or American: 1892
- Polish: 841
- Italian: 809
- French (except Basque): 730
- Swedish: 611
- Swiss: 546
- Scottish: 439
- Scotch-Irish: 327
- Czech: 314
- Dutch: 297
- Danish: 286
- French Canadian: 218
- European: 151
- Welsh: 107
- Finnish: 101
- Hungarian: 100
- Austrian: 82
- British: 70
- Czechoslovakian: 63
- Scandinavian: 62
- Russian: 62
- Belgian: 44
- Slovak: 40
- Lithuanian: 35
- Northern European: 33
- Latvian: 30
- Portuguese: 26
- Croatian: 25
- Slavic: 23
- Ukrainian: 22
- Albanian: 21
- Greek: 20
- Serbian: 18
- Subsaharan African:: 17
- African: 17
- Romanian: 15
- Pennsylvania German: 14
- Luxemburger: 14
- Slovene: 10
- Icelander: 9
- Yugoslavian: 8
- Eastern European: 6
- Alsatian: 6
- Armenian: 6
- Arab:: 6
- Egyptian: 6
- Assyrian/Chaldean/Syriac: 5
- Iranian: 4
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