21045 Zip Code

April 20, 2024

Zip Code:	21045
City/Town:	Columbia
State:	Maryland

Population:	38,288
Per Capita Income:	$36,147
Mean Household Income:	$91,304

Total Housing Units:	14,725
Median Home Value:	$162,100
Median Year Homes Built:	1978

Land Area:	9.7 sq miles 25.1 sq kilometers
Water Area:	0.1 sq miles 0.2 sq kilometers

Population Information (21045 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Total Population:

38,288

Male:

18,563

48.5%

49.2%

Female:

19,725

51.5%

50.8%

Median Age:

36.5 yrs

37.2 yrs

Under 5 years:

2,733

7.1%

6.5%

5 to 9 years:

2,617

6.1%

6.6%

10 to 19 years:

4,817

12.6%

13.8%

20 to 29 years:

5,015

13.1%

13.8%

30 to 39 years:

5,986

15.6%

13.0%

40 to 49 years:

5,553

14.5%

14.2%

50 to 59 years:

5,003

13.1%

13.6%

60 to 69 years:

4,130

10.8%

9.4%

70 to 79 years:

1,704

4.5%

5.4%

80 years and over:

730

1.9%

3.7%

Housing Information (21045 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Median home value:

$162,100

$119,600

Median year homes build:

1978

1971

Median real estate taxes:

$2,340 / yr.

$1,334 / yr.

Median rent:

$781 / mo.

$519 / mo.

Total households:

14,725

Family households:

10,083

68.5%

66.4%

Nonfamily households:

4,642

31.5%

33.6%

Households with individuals under 18 years:

5,145

34.9%

33.4%

Households with individuals 65 years and over:

3,102

21.1%

24.9%

Average household size:

2.6

Average family size:

3.1

Total housing units:

15,283

Occupied housing units:

14,725

96.3%

88.6%

Vacant housing units:

558

3.7%

11.4%

For rent:

215

1.4%

3.1%

Rented, not occupied:

0.2%

For sale only:

124

0.8%

1.4%

Sold, not occupied:

0.2%

0.3%

For seasonal, recreational, or occasional use:

0.2%

3.5%

All other vacants:

137

0.9%

2.8%

Homeowner vacancy rate:

1.2%

2.4%

Rental vacancy rate:

4.6%

9.2%

Owner-occupied housing units:

10,310

Population in owner-occupied housing units:

27,184

Average household size of owner-occupied units:

2.6

2.65

Renter-occupied housing units:

4,415

Population in renter-occupied housing units:

10,991

Average household size of renter-occupied units:

2.5

2.44

Educational Attainment (21045 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Population 25 years and over

24,874

Less than 9th grade:

568

2.3%

6.2%

9th to 12th grade, no diploma:

933

3.8%

8.7%

High school graduate (includes equivalency):

3,088

12.4%

29.0%

Some college, no degree:

4,912

19.7%

20.6%

Associate degree:

1,502

6.0%

7.5%

Bachelor's degree:

7,358

29.6%

17.6%

Graduate or professional degree:

6,513

26.2%

10.3%

Percent high school graduate or higher:

94.0%

85.0%

Percent bachelor's degree or higher:

55.8%

27.9%

Income Information (21045 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:

12,981

33.9%

50.4%

Median income:

$45,645 / yr.

$27,932 / yr.

Full-time, year-round workers:

8,612

22.5%

59.7%

Median income:

$56,493 / yr.

$38,349 / yr.

Females 15 years and over with income:

13,934

36.4%

49.6%

Median income:

$28,119 / yr.

$16,327 / yr.

Full-time, year-round workers:

7,105

18.6%

40.3%

Median income:

$40,582 / yr.

$28,135 / yr.

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