21664 Zip Code

April 23, 2024

Zip Code:	21664
City/Town:	Secretary
State:	Maryland

Population:	539
Per Capita Income:	$19,172
Mean Household Income:	$48,211

Total Housing Units:	215
Median Home Value:	$70,600
Median Year Homes Built:	1975

Land Area:	0.4 sq miles 1.1 sq kilometers
Water Area:	0.0 sq miles 0.1 sq kilometers

Population Information (21664 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Total Population:

539

Male:

265

49.2%

Female:

274

50.8%

Median Age:

43.6 yrs

37.2 yrs

Under 5 years:

7.1%

6.5%

5 to 9 years:

5.0%

6.6%

10 to 19 years:

11.7%

13.8%

20 to 29 years:

11.3%

13.8%

30 to 39 years:

9.6%

13.0%

40 to 49 years:

16.3%

14.2%

50 to 59 years:

13.7%

13.6%

60 to 69 years:

13.2%

9.4%

70 to 79 years:

7.8%

5.4%

80 years and over:

3.5%

3.7%

Housing Information (21664 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Median home value:

$70,600

$119,600

Median year homes build:

1975

1971

Median real estate taxes:

$657 / yr.

$1,334 / yr.

Median rent:

$445 / mo.

$519 / mo.

Total households:

215

Family households:

159

74.0%

66.4%

Nonfamily households:

26.0%

33.6%

Households with individuals under 18 years:

32.1%

33.4%

Households with individuals 65 years and over:

32.1%

24.9%

Average household size:

2.5

Average family size:

2.9

Total housing units:

236

Occupied housing units:

215

91.1%

88.6%

Vacant housing units:

8.9%

11.4%

For rent:

0.8%

3.1%

Rented, not occupied:

0.0%

0.2%

For sale only:

3.0%

1.4%

Sold, not occupied:

0.4%

0.3%

For seasonal, recreational, or occasional use:

1.7%

3.5%

All other vacants:

3.0%

2.8%

Homeowner vacancy rate:

4.1%

2.4%

Rental vacancy rate:

3.7%

9.2%

Owner-occupied housing units:

163

Population in owner-occupied housing units:

389

Average household size of owner-occupied units:

2.4

2.65

Renter-occupied housing units:

Population in renter-occupied housing units:

149

Average household size of renter-occupied units:

2.9

2.44

Educational Attainment (21664 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Population 25 years and over

335

Less than 9th grade:

10.4%

6.2%

9th to 12th grade, no diploma:

16.4%

8.7%

High school graduate (includes equivalency):

137

40.9%

29.0%

Some college, no degree:

18.8%

20.6%

Associate degree:

2.7%

7.5%

Bachelor's degree:

6.0%

17.6%

Graduate or professional degree:

4.8%

10.3%

Percent high school graduate or higher:

73.1%

85.0%

Percent bachelor's degree or higher:

10.7%

27.9%

Income Information (21664 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:

196

36.4%

50.4%

Median income:

$20,000 / yr.

$27,932 / yr.

Full-time, year-round workers:

15.0%

59.7%

Median income:

$27,250 / yr.

$38,349 / yr.

Females 15 years and over with income:

173

32.1%

49.6%

Median income:

$16,442 / yr.

$16,327 / yr.

Full-time, year-round workers:

13.5%

40.3%

Median income:

$24,375 / yr.

$28,135 / yr.

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