Year Structure Built in Zip Code 21704
*Base on 2012 Data
| Total housing units | 4,504 | 100% |
| Built 2010 or later | 73 | 1.6% |
| Built 2000 to 2009 | 2,479 | 55.0% |
| Built 1990 to 1999 | 420 | 9.3% |
| Built 1980 to 1989 | 373 | 8.3% |
| Built 1970 to 1979 | 269 | 6.0% |
| Built 1960 to 1969 | 270 | 6.0% |
| Built 1950 to 1959 | 207 | 4.6% |
| Built 1940 to 1949 | 151 | 3.4% |
| Built 1939 or earlier | 262 | 5.8% |
Value in Zip Code 21704
*Base on 2012 Data
| Owner-occupied units | 3,838 | 100% |
| Less than $50,000 | 35 | 0.9% |
| $50,000 to $99,999 | 52 | 1.4% |
| $100,000 to $149,999 | 81 | 2.1% |
| $150,000 to $199,999 | 126 | 3.3% |
| $200,000 to $299,999 | 570 | 14.9% |
| $300,000 to $499,999 | 1,950 | 50.8% |
| $500,000 to $999,999 | 955 | 24.9% |
| $1,000,000 or more | 69 | 1.8% |
| Median (dollars) | 409,500 | 0% |
Selected Monthly Owner Costs (Smoc) in Zip Code 21704
*Base on 2012 Data
| Housing units with a mortgage | 3,293 | 100% |
| Less than $300 | 0 | 0.0% |
| $300 to $499 | 0 | 0.0% |
| $500 to $699 | 9 | 0.3% |
| $700 to $999 | 61 | 1.9% |
| $1,000 to $1,499 | 207 | 6.3% |
| $1,500 to $1,999 | 251 | 7.6% |
| $2,000 or more | 2,765 | 84.0% |
| Median (dollars) | 2,731 | 0% |
Housing Occupancy in Zip Code 21704
*Base on 2012 Data
| Total housing units | 4,504 | 100% |
| Occupied housing units | 4,460 | 99.0% |
| Vacant housing units | 44 | 1.0% |
| Homeowner vacancy rate | 1 | 0% |
| Rental vacancy rate | 0 | 0% |
Units In Structure in Zip Code 21704
*Base on 2012 Data
| Total housing units | 4,504 | 100% |
| 1-unit, detached | 3,067 | 68.1% |
| 1-unit, attached | 1,140 | 25.3% |
| 2 units | 13 | 0.3% |
| 3 or 4 units | 19 | 0.4% |
| 5 to 9 units | 39 | 0.9% |
| 10 to 19 units | 28 | 0.6% |
| 20 or more units | 163 | 3.6% |
| Mobile home | 35 | 0.8% |
| Boat, RV, van, etc. | 0 | 0.0% |
Rooms in Zip Code 21704
*Base on 2012 Data
| Total housing units | 4,504 | 100% |
| 1 room | 45 | 1.0% |
| 2 rooms | 128 | 2.8% |
| 3 rooms | 129 | 2.9% |
| 4 rooms | 221 | 4.9% |
| 5 rooms | 253 | 5.6% |
| 6 rooms | 528 | 11.7% |
| 7 rooms | 645 | 14.3% |
| 8 rooms | 958 | 21.3% |
| 9 rooms or more | 1,597 | 35.5% |
| Median rooms | 8 | 0% |
Bedrooms in Zip Code 21704
*Base on 2012 Data
| Total housing units | 4,504 | 100% |
| No bedroom | 45 | 1.0% |
| 1 bedroom | 200 | 4.4% |
| 2 bedrooms | 319 | 7.1% |
| 3 bedrooms | 1,514 | 33.6% |
| 4 bedrooms | 1,856 | 41.2% |
| 5 or more bedrooms | 570 | 12.7% |
Housing Tenure in Zip Code 21704
*Base on 2012 Data
| Occupied housing units | 4,460 | 100% |
| Owner-occupied | 3,838 | 86.1% |
| Renter-occupied | 622 | 13.9% |
| Average household size of owner-occupied unit | 3 | 0% |
| Average household size of renter-occupied unit | 2 | 0% |
Year Householder Moved Into Unit in Zip Code 21704
*Base on 2012 Data
| Occupied housing units | 4,460 | 100% |
| Moved in 2010 or later | 240 | 5.4% |
| Moved in 2000 to 2009 | 3,224 | 72.3% |
| Moved in 1990 to 1999 | 383 | 8.6% |
| Moved in 1980 to 1989 | 336 | 7.5% |
| Moved in 1970 to 1979 | 153 | 3.4% |
| Moved in 1969 or earlier | 124 | 2.8% |
Vehicles Available in Zip Code 21704
*Base on 2012 Data
| Occupied housing units | 4,460 | 100% |
| No vehicles available | 175 | 3.9% |
| 1 vehicle available | 819 | 18.4% |
| 2 vehicles available | 2,382 | 53.4% |
| 3 or more vehicles available | 1,084 | 24.3% |
House Heating Fuel in Zip Code 21704
*Base on 2012 Data
| Occupied housing units | 4,460 | 100% |
| Utility gas | 2,505 | 56.2% |
| Bottled, tank, or LP gas | 165 | 3.7% |
| Electricity | 1,097 | 24.6% |
| Fuel oil, kerosene, etc. | 666 | 14.9% |
| Coal or coke | 0 | 0.0% |
| Wood | 27 | 0.6% |
| Solar energy | 0 | 0.0% |
| Other fuel | 0 | 0.0% |
| No fuel used | 0 | 0.0% |
Selected Characteristics in Zip Code 21704
*Base on 2012 Data
| Occupied housing units | 4,460 | 100% |
| Lacking complete plumbing facilities | 0 | 0.0% |
| Lacking complete kitchen facilities | 201 | 4.5% |
| No telephone service available | 73 | 1.6% |
Occupants Per Room in Zip Code 21704
*Base on 2012 Data
| Occupied housing units | 4,460 | 100% |
| 1.00 or less | 4,367 | 97.9% |
| 1.01 to 1.50 | 93 | 2.1% |
| 1.51 or more | 0 | 0.0% |
Mortgage Status in Zip Code 21704
*Base on 2012 Data
| Owner-occupied units | 3,838 | 100% |
| Housing units with a mortgage | 3,293 | 85.8% |
| Housing units without a mortgage | 545 | 14.2% |
Selected Monthly Owner Costs (Smoc) - Housing units without a mortgage in Zip Code 21704
*Base on 2012 Data
| Housing units without a mortgage | 545 | 100% |
| Less than $100 | 0 | 0.0% |
| $100 to $199 | 22 | 4.0% |
| $200 to $299 | 71 | 13.0% |
| $300 to $399 | 14 | 2.6% |
| $400 or more | 438 | 80.4% |
| Median (dollars) | 565 | 0% |
Selected Monthly Owner Costs As A Percentage of Household Income (Smocapi) - Housing units with a mortgage in Zip Code 21704
*Base on 2012 Data
| Housing units with a mortgage (excluding units where SMOCAPI cannot be computed) | 3,283 | 100% |
| Less than 20.0 percent | 873 | 26.6% |
| 20.0 to 24.9 percent | 613 | 18.7% |
| 25.0 to 29.9 percent | 395 | 12.0% |
| 30.0 to 34.9 percent | 301 | 9.2% |
| 35.0 percent or more | 1,101 | 33.5% |
| Not computed | 10 | 0% |
Selected Monthly Owner Costs As A Percentage Of Household Income (Smocapi) - Housing unit without a mortgage in Zip Code 21704
*Base on 2012 Data
| Housing unit without a mortgage (excluding units where SMOCAPI cannot be computed) | 507 | 100% |
| Less than 10.0 percent | 168 | 33.1% |
| 10.0 to 14.9 percent | 66 | 13.0% |
| 15.0 to 19.9 percent | 100 | 19.7% |
| 20.0 to 24.9 percent | 52 | 10.3% |
| 25.0 to 29.9 percent | 54 | 10.7% |
| 30.0 to 34.9 percent | 36 | 7.1% |
| 35.0 percent or more | 31 | 6.1% |
| Not computed | 38 | 0% |
Gross Rent in Zip Code 21704
*Base on 2012 Data
| Occupied units paying rent | 525 | 100% |
| Less than $200 | 0 | 0.0% |
| $200 to $299 | 39 | 7.4% |
| $300 to $499 | 0 | 0.0% |
| $500 to $749 | 31 | 5.9% |
| $750 to $999 | 150 | 28.6% |
| $1,000 to $1,499 | 152 | 29.0% |
| $1,500 or more | 153 | 29.1% |
| Median (dollars) | 1,169 | 0% |
| No rent paid | 97 | 0% |
Gross Rent As A Percentage Of Household Income (grapi) in Zip Code 21704
*Base on 2012 Data
| Occupied units paying rent (excluding units where GRAPI cannot be computed) | 525 | 100% |
| Less than 15.0 percent | 63 | 12.0% |
| 15.0 to 19.9 percent | 30 | 5.7% |
| 20.0 to 24.9 percent | 35 | 6.7% |
| 25.0 to 29.9 percent | 119 | 22.7% |
| 30.0 to 34.9 percent | 58 | 11.0% |
| 35.0 percent or more | 220 | 41.9% |
| Not computed | 97 | 0% |