| Back to United States. City: Ajo, AZ Population (2000): 5,004
Housing units: 3,002 Land area: 2367.9 sq. mi. Water area: 0.4 sq. mi. White population: 3092 Black population: 9 American Indian population: 1319 Asian population: 12 Native Hawaiian and Other Pacific Islander population: 3 Some other race population: 367 Two or more races population: 202 Urban population: 3221 Rural population: 1783 Median age: 45.6 Average household size: 2.45 Median household income (1999): $23610
 
Nearest zip codes: 85337, 85333, 85634, 85239, 85322, 85272.
Year house built:
- 1999 to March 2000: 129
- 1995 to 1998: 135
- 1990 to 1994: 127
- 1980 to 1989: 276
- 1970 to 1979: 538
- 1960 to 1969: 483
- 1950 to 1959: 576
- 1940 to 1949: 307
- 1939 or earlier: 402
Bedrooms in owner-occupied houses in Ajo, AZ (85321):
- no bedroom: 66
- 1 bedrooms: 163
- 2 bedrooms: 553
- 3 bedrooms: 632
- 4 bedrooms: 89
- 5 or more bedrooms: 11
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 31
- 1 bedrooms: 132
- 2 bedrooms: 137
- 3 bedrooms: 196
- 4 bedrooms: 9
- 5 or more bedrooms: 9
Vehicles available in 85321 zip code in owner-occupied houses:
- no vehicle: 138
- 1 vehicle: 547
- 2 vehicles: 583
- 3 vehicles: 182
- 4 vehicles: 53
- 5 or more vehicles: 11
Vehicles available in renter-occupied housing units:
- no vehicle: 128
- 1 vehicle: 250
- 2 vehicles: 121
- 3 vehicles: 3
- 4 vehicles: 7
- 5 or more vehicles: 5
Estimate of home value of owner-occupied houses in 2000 in zip code 85321:
- Less than $10,000: 72
- $10,000 to $14,999: 17
- $15,000 to $19,999: 28
- $20,000 to $24,999: 31
- $25,000 to $29,999: 31
- $30,000 to $34,999: 31
- $35,000 to $39,999: 69
- $40,000 to $49,999: 134
- $50,000 to $59,999: 191
- $60,000 to $69,999: 165
- $70,000 to $79,999: 153
- $80,000 to $89,999: 145
- $90,000 to $99,999: 65
- $100,000 to $124,999: 43
- $125,000 to $149,999: 37
- $150,000 to $174,999: 19
- $175,000 to $199,999: 3
- $200,000 to $249,999: 3
- $250,000 to $299,999: 8
- $300,000 to $399,999: 10
- $400,000 to $499,999: 0
- $500,000 to $749,999: 7
- $750,000 to $999,999: 0
- $1,000,000 or more: 0
First ancestries reported:
- Other groups: 2489
- English: 290
- German: 276
- Irish: 212
- United States or American: 192
- Scottish: 74
- Scotch-Irish: 72
- Italian: 55
- Swedish: 48
- Norwegian: 43
- European: 42
- French (except Basque): 35
- Danish: 30
- Dutch: 23
- French Canadian: 19
- Polish: 18
- Welsh: 14
- Finnish: 13
- Scandinavian: 10
- Slovene: 8
- British: 7
- Canadian: 7
- Subsaharan African:: 6
- Hungarian: 5
- African: 5
- Swiss: 4
- Czech: 4
- Czechoslovakian: 4
- Greek: 3
- Eastern European: 3
- Acadian/Cajun: 3
- Slovak: 2
- Pennsylvania German: 2
- Other Subsaharan African: 1
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