| Back to United States. City: St. Leonard, MD Population (2000): 5,585
Housing units: 2,099 Land area: 22.5 sq. mi. Water area: 0.0 sq. mi. White population: 4814 Black population: 614 American Indian population: 16 Asian population: 43 Native Hawaiian and Other Pacific Islander population: 1 Some other race population: 39 Two or more races population: 58 Urban population: 2782 Rural population: 2803 Median age: 35.4 Average household size: 2.93 Median household income (1999): $66705
 
Nearest zip codes: 20676, 20615, 20657, 20636, 20688, 20678.
Year house built:
- 1999 to March 2000: 123
- 1995 to 1998: 288
- 1990 to 1994: 379
- 1980 to 1989: 421
- 1970 to 1979: 385
- 1960 to 1969: 149
- 1950 to 1959: 128
- 1940 to 1949: 102
- 1939 or earlier: 82
Bedrooms in owner-occupied houses in St. Leonard, MD (20685):
- no bedroom: 0
- 1 bedrooms: 28
- 2 bedrooms: 202
- 3 bedrooms: 649
- 4 bedrooms: 591
- 5 or more bedrooms: 177
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 0
- 1 bedrooms: 44
- 2 bedrooms: 58
- 3 bedrooms: 47
- 4 bedrooms: 8
- 5 or more bedrooms: 37
Vehicles available in 20685 zip code in owner-occupied houses:
- no vehicle: 14
- 1 vehicle: 227
- 2 vehicles: 803
- 3 vehicles: 426
- 4 vehicles: 131
- 5 or more vehicles: 46
Vehicles available in renter-occupied housing units:
- no vehicle: 0
- 1 vehicle: 109
- 2 vehicles: 65
- 3 vehicles: 9
- 4 vehicles: 11
- 5 or more vehicles: 0
Estimate of home value of owner-occupied houses in 2000 in zip code 20685:
- Less than $10,000: 0
- $10,000 to $14,999: 0
- $15,000 to $19,999: 0
- $20,000 to $24,999: 0
- $25,000 to $29,999: 8
- $30,000 to $34,999: 0
- $35,000 to $39,999: 0
- $40,000 to $49,999: 0
- $50,000 to $59,999: 0
- $60,000 to $69,999: 0
- $70,000 to $79,999: 31
- $80,000 to $89,999: 30
- $90,000 to $99,999: 85
- $100,000 to $124,999: 213
- $125,000 to $149,999: 246
- $150,000 to $174,999: 205
- $175,000 to $199,999: 143
- $200,000 to $249,999: 260
- $250,000 to $299,999: 70
- $300,000 to $399,999: 81
- $400,000 to $499,999: 24
- $500,000 to $749,999: 34
- $750,000 to $999,999: 0
- $1,000,000 or more: 8
First ancestries reported:
- Other groups: 957
- Irish: 778
- English: 535
- German: 492
- United States or American: 406
- Italian: 406
- Scotch-Irish: 126
- Scottish: 113
- Polish: 82
- Welsh: 52
- French (except Basque): 46
- Norwegian: 38
- European: 34
- Dutch: 28
- British: 28
- Maltese: 25
- Russian: 20
- French Canadian: 20
- Swedish: 19
- Czech: 17
- Arab:: 16
- Lebanese: 16
- Danish: 14
- Slovak: 13
- Subsaharan African:: 13
- African: 13
- Greek: 8
- Czechoslovakian: 8
- Belgian: 7
- Turkish: 7
- Finnish: 6
- Lithuanian: 4
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