| Back to United States. City: Port Byron, IL Population (2000): 4,606
Housing units: 1,860 Land area: 35.0 sq. mi. Water area: 0.0 sq. mi. White population: 4499 Black population: 15 American Indian population: 16 Asian population: 5 Native Hawaiian and Other Pacific Islander population: 2 Some other race population: 23 Two or more races population: 46 Urban population: 1642 Rural population: 2964 Median age: 39.7 Average household size: 2.60 Median household income (1999): $52713
 
Nearest zip codes: 52753, 61236, 52768, 61242, 61256, 52767.
Year house built:
- 1999 to March 2000: 33
- 1995 to 1998: 133
- 1990 to 1994: 155
- 1980 to 1989: 208
- 1970 to 1979: 414
- 1960 to 1969: 273
- 1950 to 1959: 157
- 1940 to 1949: 116
- 1939 or earlier: 337
Bedrooms in owner-occupied houses in Port Byron, IL (61275):
- no bedroom: 0
- 1 bedrooms: 31
- 2 bedrooms: 294
- 3 bedrooms: 830
- 4 bedrooms: 329
- 5 or more bedrooms: 43
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 3
- 1 bedrooms: 80
- 2 bedrooms: 97
- 3 bedrooms: 43
- 4 bedrooms: 16
- 5 or more bedrooms: 0
Vehicles available in 61275 zip code in owner-occupied houses:
- no vehicle: 38
- 1 vehicle: 263
- 2 vehicles: 762
- 3 vehicles: 288
- 4 vehicles: 121
- 5 or more vehicles: 55
Vehicles available in renter-occupied housing units:
- no vehicle: 23
- 1 vehicle: 104
- 2 vehicles: 87
- 3 vehicles: 24
- 4 vehicles: 1
- 5 or more vehicles: 0
Estimate of home value of owner-occupied houses in 2000 in zip code 61275:
- Less than $10,000: 0
- $10,000 to $14,999: 2
- $15,000 to $19,999: 2
- $20,000 to $24,999: 2
- $25,000 to $29,999: 2
- $30,000 to $34,999: 13
- $35,000 to $39,999: 12
- $40,000 to $49,999: 35
- $50,000 to $59,999: 70
- $60,000 to $69,999: 50
- $70,000 to $79,999: 89
- $80,000 to $89,999: 130
- $90,000 to $99,999: 153
- $100,000 to $124,999: 155
- $125,000 to $149,999: 112
- $150,000 to $174,999: 105
- $175,000 to $199,999: 91
- $200,000 to $249,999: 109
- $250,000 to $299,999: 24
- $300,000 to $399,999: 24
- $400,000 to $499,999: 13
- $500,000 to $749,999: 2
- $750,000 to $999,999: 1
- $1,000,000 or more: 0
First ancestries reported:
- German: 935
- Irish: 344
- English: 265
- Other groups: 249
- United States or American: 224
- Belgian: 223
- Swedish: 192
- Dutch: 120
- Scottish: 71
- Italian: 70
- Scotch-Irish: 67
- French (except Basque): 54
- Danish: 50
- Czech: 49
- Norwegian: 48
- Greek: 28
- French Canadian: 27
- Polish: 27
- British: 27
- Welsh: 23
- Luxemburger: 22
- Austrian: 21
- European: 18
- Czechoslovakian: 9
- Arab:: 8
- Hungarian: 8
- Northern European: 6
- Syrian: 6
- Lithuanian: 5
- Ukrainian: 4
- Yugoslavian: 3
- Scandinavian: 3
- Iranian: 3
- Subsaharan African:: 2
- Russian: 2
- Lebanese: 2
- African: 2
- Canadian: 2
- Croatian: 2
- Portuguese: 1
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