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21918 Zip Code

April 20, 2024

Zip Code:	21918
City/Town:	Conowingo
State:	Maryland

Population:	4,284
Per Capita Income:	$23,922
Mean Household Income:	$65,228

Total Housing Units:	1,511
Median Home Value:	$135,300
Median Year Homes Built:	1982

Land Area:	17.7 sq miles 45.7 sq kilometers
Water Area:	2.6 sq miles 6.6 sq kilometers

Population Information (21918 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Total Population:

4,284

Male:

2,180

50.9%

49.2%

Female:

2,104

49.1%

50.8%

Median Age:

41.2 yrs

37.2 yrs

Under 5 years:

192

4.5%

6.5%

5 to 9 years:

290

8.4%

6.6%

10 to 19 years:

670

15.6%

13.8%

20 to 29 years:

442

10.3%

13.8%

30 to 39 years:

465

10.9%

13.0%

40 to 49 years:

779

18.2%

14.2%

50 to 59 years:

702

16.4%

13.6%

60 to 69 years:

438

10.2%

9.4%

70 to 79 years:

213

5.0%

5.4%

80 years and over:

2.2%

3.7%

Housing Information (21918 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Median home value:

$135,300

$119,600

Median year homes build:

1982

1971

Median real estate taxes:

$1,261 / yr.

$1,334 / yr.

Median rent:

$488 / mo.

$519 / mo.

Total households:

1,511

Family households:

1,182

78.2%

66.4%

Nonfamily households:

329

21.8%

33.6%

Households with individuals under 18 years:

550

36.4%

33.4%

Households with individuals 65 years and over:

350

23.2%

24.9%

Average household size:

2.8

Average family size:

3.2

Total housing units:

1,589

Occupied housing units:

1,511

95.1%

88.6%

Vacant housing units:

4.9%

11.4%

For rent:

0.5%

3.1%

Rented, not occupied:

0.1%

0.2%

For sale only:

1.6%

1.4%

Sold, not occupied:

0.4%

0.3%

For seasonal, recreational, or occasional use:

0.6%

3.5%

All other vacants:

1.7%

2.8%

Homeowner vacancy rate:

1.9%

2.4%

Rental vacancy rate:

4.0%

9.2%

Owner-occupied housing units:

1,318

Population in owner-occupied housing units:

3,735

Average household size of owner-occupied units:

2.8

2.65

Renter-occupied housing units:

193

Population in renter-occupied housing units:

528

Average household size of renter-occupied units:

2.7

2.44

Educational Attainment (21918 zip code)

Number/Percent/U.S. Avg

Percent

U.S. Avg

Population 25 years and over

2,637

Less than 9th grade:

3.6%

6.2%

9th to 12th grade, no diploma:

386

14.6%

8.7%

High school graduate (includes equivalency):

1,168

44.3%

29.0%

Some college, no degree:

544

20.6%

Associate degree:

159

6.0%

7.5%

Bachelor's degree:

186

7.1%

17.6%

Graduate or professional degree:

3.7%

10.3%

Percent high school graduate or higher:

81.7%

85.0%

Percent bachelor's degree or higher:

10.8%

27.9%

Income Information (21918 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:

1,460

34.1%

50.4%

Median income:

$30,798 / yr.

$27,932 / yr.

Full-time, year-round workers:

864

20.2%

59.7%

Median income:

$38,548 / yr.

$38,349 / yr.

Females 15 years and over with income:

1,281

29.9%

49.6%

Median income:

$19,266 / yr.

$16,327 / yr.

Full-time, year-round workers:

673

15.7%

40.3%

Median income:

$23,768 / yr.

$28,135 / yr.

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