| HOUSING | Spearfish | Lancaster | United States |
| Median Home Age | 28.2 | 72.5 | 35.1 |
| Median Home Cost | $214,100 | $107,900 | $153,800 |
| Home Appreciation | 3.11% | -1.84% | 1.62% |
| Homes Owned | 46.76% | 40.92% | 57.69% |
| Housing Vacant | 7.95% | 6.78% | 11.38% |
| Homes Rented | 45.29% | 52.30% | 30.93% |
| Property Tax Rate | $17.86 | $14.64 | $11.20 |
| OWNER-OCCUPIED HOUSING UNITS BY VALUE | | | |
| Less Than $20,000 | 5.80% | 0.41% | 2.72% |
| $20,000 to $39,999 | 4.68% | 1.04% | 4.03% |
| $40,000 to $59,999 | 4.80% | 3.07% | 5.58% |
| $60,000 to $79,999 | 5.41% | 12.91% | 7.09% |
| $80,000 to $99,999 | 9.33% | 17.77% | 8.80% |
| $100,000 to $149,999 | 30.36% | 47.28% | 21.26% |
| $150,000 to $199,999 | 20.73% | 10.04% | 14.87% |
| $200,000 to $299,999 | 13.93% | 5.09% | 16.82% |
| $300,000 to $399,999 | 2.38% | 1.19% | 7.83% |
| $400,000 to $499,999 | 0.61% | 0.63% | 4.04% |
| $500,000 to $749,999 | 1.00% | 0.32% | 4.05% |
| $750,000 to $999,999 | 0.23% | 0.09% | 1.26% |
| $1,000,000 or more | 0.73% | 0.18% | 1.64% |
| HOUSING UNITS BY YEAR STRUCTURE BUILT | | | |
| 1999 to 2005 | 19.59% | 3.00% | 13.71% |
| 1995 to 1998 | 17.45% | 2.03% | 14.31% |
| 1990 to 1994 | 17.45% | 2.03% | 14.31% |
| 1980 to 1989 | 16.22% | 3.76% | 13.87% |
| 1970 to 1979 | 18.62% | 6.54% | 16.17% |
| 1960 to 1969 | 7.89% | 7.26% | 11.70% |
| 1950 to 1959 | 8.68% | 12.74% | 11.08% |
| 1940 to 1949 | 3.10% | 12.12% | 6.02% |
| 1939 or Earlier | 8.45% | 52.55% | 13.15% |
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