| HOUSING | Arnold | Boulder | United States |
| Median Home Age | 29.8 | 37.2 | 35.1 |
| Median Home Cost | $326,100 | $411,000 | $153,800 |
| Home Appreciation | -0.62% | 3.05% | 1.62% |
| Homes Owned | 81.57% | 45.30% | 57.69% |
| Housing Vacant | 3.96% | 5.01% | 11.38% |
| Homes Rented | 14.48% | 49.70% | 30.93% |
| Property Tax Rate | $10.70 | $6.52 | $11.20 |
| OWNER-OCCUPIED HOUSING UNITS BY VALUE | | | |
| Less Than $20,000 | 0.27% | 2.28% | 2.72% |
| $20,000 to $39,999 | 0.00% | 2.02% | 4.03% |
| $40,000 to $59,999 | 0.17% | 0.73% | 5.58% |
| $60,000 to $79,999 | 0.01% | 0.48% | 7.09% |
| $80,000 to $99,999 | 0.03% | 0.63% | 8.80% |
| $100,000 to $149,999 | 2.11% | 4.42% | 21.26% |
| $150,000 to $199,999 | 13.15% | 5.97% | 14.87% |
| $200,000 to $299,999 | 30.61% | 20.93% | 16.82% |
| $300,000 to $399,999 | 21.60% | 21.37% | 7.83% |
| $400,000 to $499,999 | 11.68% | 14.98% | 4.04% |
| $500,000 to $749,999 | 12.16% | 15.54% | 4.05% |
| $750,000 to $999,999 | 3.16% | 7.06% | 1.26% |
| $1,000,000 or more | 5.04% | 3.56% | 1.64% |
| HOUSING UNITS BY YEAR STRUCTURE BUILT | | | |
| 1999 to 2005 | 5.18% | 6.41% | 13.71% |
| 1995 to 1998 | 14.90% | 9.87% | 14.31% |
| 1990 to 1994 | 14.90% | 9.87% | 14.31% |
| 1980 to 1989 | 29.68% | 16.19% | 13.87% |
| 1970 to 1979 | 28.76% | 25.84% | 16.17% |
| 1960 to 1969 | 8.04% | 20.70% | 11.70% |
| 1950 to 1959 | 6.85% | 11.02% | 11.08% |
| 1940 to 1949 | 2.79% | 2.06% | 6.02% |
| 1939 or Earlier | 3.81% | 7.92% | 13.15% |
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