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20851 Zip Code

April 23, 2024

Zip Code:	20851
City/Town:	Rockville
State:	Maryland

Population:	14,191
Per Capita Income:	$28,414
Mean Household Income:	$77,278

Total Housing Units:	4,838
Median Home Value:	$155,100
Median Year Homes Built:	1958

Land Area:	2.4 sq miles 6.1 sq kilometers
Water Area:	0.0 sq miles 0.0 sq kilometers

Population Information (20851 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Total Population:

14,191

Male:

7,180

50.6%

49.2%

Female:

7,011

49.4%

50.8%

Median Age:

35.1 yrs

37.2 yrs

Under 5 years:

1,000

7.0%

6.5%

5 to 9 years:

786

6.4%

6.6%

10 to 19 years:

1,644

11.6%

13.8%

20 to 29 years:

2,352

16.6%

13.8%

30 to 39 years:

2,409

17.0%

13.0%

40 to 49 years:

2,207

15.6%

14.2%

50 to 59 years:

1,916

13.5%

13.6%

60 to 69 years:

990

7.0%

9.4%

70 to 79 years:

525

3.7%

5.4%

80 years and over:

362

2.6%

3.7%

Housing Information (20851 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Median home value:

$155,100

$119,600

Median year homes build:

1958

1971

Median real estate taxes:

$1,904 / yr.

$1,334 / yr.

Median rent:

$864 / mo.

$519 / mo.

Total households:

4,838

Family households:

3,312

68.5%

66.4%

Nonfamily households:

1,526

31.5%

33.6%

Households with individuals under 18 years:

1,686

34.8%

33.4%

Households with individuals 65 years and over:

969

20.0%

24.9%

Average household size:

2.9

Average family size:

3.3

Total housing units:

5,042

Occupied housing units:

4,838

96.0%

88.6%

Vacant housing units:

204

4.0%

11.4%

For rent:

1.6%

3.1%

Rented, not occupied:

0.0%

0.2%

For sale only:

0.8%

1.4%

Sold, not occupied:

0.3%

For seasonal, recreational, or occasional use:

0.1%

3.5%

All other vacants:

1.3%

2.8%

Homeowner vacancy rate:

1.4%

2.4%

Rental vacancy rate:

4.2%

9.2%

Owner-occupied housing units:

2,989

Population in owner-occupied housing units:

8,893

Average household size of owner-occupied units:

3.0

2.65

Renter-occupied housing units:

1,849

Population in renter-occupied housing units:

5,256

Average household size of renter-occupied units:

2.8

2.44

Educational Attainment (20851 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Population 25 years and over

9,018

Less than 9th grade:

684

7.6%

6.2%

9th to 12th grade, no diploma:

895

9.9%

8.7%

High school graduate (includes equivalency):

1,927

21.4%

29.0%

Some college, no degree:

1,648

18.3%

20.6%

Associate degree:

424

4.7%

7.5%

Bachelor's degree:

1,818

20.2%

17.6%

Graduate or professional degree:

1,622

18.0%

10.3%

Percent high school graduate or higher:

82.5%

85.0%

Percent bachelor's degree or higher:

38.1%

27.9%

Income Information (20851 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Mean household income:

$0 / yr.

$70,883

Per capita income:

$0 / yr.

$27,334

Males 15 years and over with income:

4,882

34.4%

50.4%

Median income:

$33,000 / yr.

$27,932 / yr.

Full-time, year-round workers:

2,925

20.6%

59.7%

Median income:

$40,634 / yr.

$38,349 / yr.

Females 15 years and over with income:

4,466

31.5%

49.6%

Median income:

$23,460 / yr.

$16,327 / yr.

Full-time, year-round workers:

2,009

14.2%

40.3%

Median income:

$35,254 / yr.

$28,135 / yr.

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