| Back to United States. City: Jefferson, IA Population (2000): 5,724
Housing units: 2,521 Land area: 167.0 sq. mi. Water area: 0.8 sq. mi. White population: 5612 Black population: 8 American Indian population: 14 Asian population: 19 Native Hawaiian and Other Pacific Islander population: 1 Some other race population: 36 Two or more races population: 34 Urban population: 4405 Rural population: 1319 Median age: 42.5 Average household size: 2.34 Median household income (1999): $36111
 
Nearest zip codes: 50059, 50107, 50026, 50064, 50128, 51462.
Year house built:
- 1999 to March 2000: 5
- 1995 to 1998: 69
- 1990 to 1994: 101
- 1980 to 1989: 147
- 1970 to 1979: 372
- 1960 to 1969: 293
- 1950 to 1959: 316
- 1940 to 1949: 258
- 1939 or earlier: 966
Bedrooms in owner-occupied houses in Jefferson, IA (50129):
- no bedroom: 0
- 1 bedrooms: 36
- 2 bedrooms: 441
- 3 bedrooms: 902
- 4 bedrooms: 355
- 5 or more bedrooms: 42
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 0
- 1 bedrooms: 161
- 2 bedrooms: 243
- 3 bedrooms: 114
- 4 bedrooms: 27
- 5 or more bedrooms: 13
Vehicles available in 50129 zip code in owner-occupied houses:
- no vehicle: 78
- 1 vehicle: 472
- 2 vehicles: 736
- 3 vehicles: 375
- 4 vehicles: 100
- 5 or more vehicles: 15
Vehicles available in renter-occupied housing units:
- no vehicle: 138
- 1 vehicle: 254
- 2 vehicles: 135
- 3 vehicles: 13
- 4 vehicles: 18
- 5 or more vehicles: 0
Estimate of home value of owner-occupied houses in 2000 in zip code 50129:
- Less than $10,000: 16
- $10,000 to $14,999: 38
- $15,000 to $19,999: 44
- $20,000 to $24,999: 40
- $25,000 to $29,999: 36
- $30,000 to $34,999: 96
- $35,000 to $39,999: 77
- $40,000 to $49,999: 176
- $50,000 to $59,999: 211
- $60,000 to $69,999: 194
- $70,000 to $79,999: 138
- $80,000 to $89,999: 138
- $90,000 to $99,999: 78
- $100,000 to $124,999: 102
- $125,000 to $149,999: 10
- $150,000 to $174,999: 31
- $175,000 to $199,999: 3
- $200,000 to $249,999: 6
- $250,000 to $299,999: 0
- $300,000 to $399,999: 14
- $400,000 to $499,999: 0
- $500,000 to $749,999: 0
- $750,000 to $999,999: 0
- $1,000,000 or more: 6
First ancestries reported:
- German: 1618
- United States or American: 550
- Irish: 518
- English: 412
- Norwegian: 147
- Swedish: 140
- Other groups: 127
- Scottish: 124
- Dutch: 117
- French (except Basque): 98
- Italian: 95
- Danish: 87
- Scotch-Irish: 74
- Welsh: 47
- European: 30
- Czech: 24
- Polish: 21
- Russian: 16
- French Canadian: 16
- Czechoslovakian: 13
- Pennsylvania German: 11
- British: 10
- Swiss: 10
- Subsaharan African:: 8
- African: 8
- Canadian: 6
- Portuguese: 6
- Scandinavian: 6
- Belgian: 5
- Arab:: 3
- Syrian: 3
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