ZIP Code 20618

ZIP Code Tabulation Area in St. Mary's County, Maryland.

Population: 1,513
Median household income: $103,115
Median home value: $291,900

Covering part of St. Mary's County, Maryland, ZIP Code 20618 has about 1,513 residents. At $103,115, its median household income sits below St. Mary's County's $114,580.

From 2019 to 2023, ZIP Code 20618's population grew 272.7% from 406 to 1,513, while its median gross rent rose 20.1% from $1,337 to $1,606.

55.0% of workers drive to work alone. 100.0% of homes are single-family detached houses.

Demographics

ACS 2019–2023

Population: 1,513
Median age: 51.4 yrs
Median household income: $103,115
Median home value: $291,900
Median gross rent: $1,606
Housing units: 789
Homeownership rate: 82.1%
Bachelor's degree or higher: 14.5%
Unemployment rate: 12.1%

Trends

ACS 5-year · 2019–2023

Population

4061,513

Median household income

$59,850$103,115

Median home value

$360,500$291,900

Median gross rent

$1,337$1,606

Year	Population	Median household income	Median home value	Median gross rent
2019	406	$59,850	$360,500	$1,337
2020	402	$54,931	$402,900	$1,257
2021	941	$52,175	$272,900	$1,353
2022	1,087	$78,654	$289,800	$1,424
2023	1,513	$103,115	$291,900	$1,606

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 54.5%

5 to 1710.8%

18 to 245.9%

25 to 3412.6%

35 to 4410.2%

45 to 5418.2%

55 to 6410.1%

65 to 7414.3%

75 and over13.4%

	Count	Share
Under 5	68	4.5%
5 to 17	164	10.8%
18 to 24	90	5.9%
25 to 34	190	12.6%
35 to 44	155	10.2%
45 to 54	275	18.2%
55 to 64	153	10.1%
65 to 74	216	14.3%
75 and over	202	13.4%

Race & ethnicity

	Count	Share
White (non-Hispanic)	893	59.0%
Black or African American	581	38.4%
American Indian & Alaska Native	0	0.0%
Asian	0	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	12	0.8%
Hispanic or Latino (any race)	27	1.8%

Educational attainment (age 25+)

No high school diploma23.8%

High school graduate34.5%

Some college or associate's27.2%

Bachelor's degree12.7%

Graduate or professional degree1.8%

	Count	Share
No high school diploma	283	23.8%
High school graduate	411	34.5%
Some college or associate's	324	27.2%
Bachelor's degree	151	12.7%
Graduate or professional degree	22	1.8%

Commute to work

Mean travel time to work: 42 min

Drove alone55.0%

Carpooled11.2%

Public transit0.0%

Walked5.8%

Bicycle0.0%

Worked from home28.0%

Other means0.0%

How workers get to work

	Count	Share
Drove alone	387	55.0%
Carpooled	79	11.2%
Public transit	0	0.0%
Walked	41	5.8%
Bicycle	0	0.0%
Worked from home	197	28.0%
Other means	0	0.0%

Travel time

	Count	Share
Under 15 min	28	5.5%
15 to 29 min	144	28.4%
30 to 44 min	136	26.8%
45 to 59 min	84	16.6%
60+ min	115	22.7%

Households

Average household size: 2.52
Poverty rate: 3.5% (52 of 1,482)

	Count	Share
Family households	444	76.3%
Nonfamily households	138	23.7%

Housing

Median year structure built: 1981

Occupancy

	Count	Share
Occupied	582	73.8%
Vacant	207	26.2%

Tenure (of occupied units)

	Count	Share
Owner-occupied	478	82.1%
Renter-occupied	104	17.9%

1-unit, detached100.0%

1-unit, attached0.0%

2 to 4 units0.0%

5 to 19 units0.0%

20 or more units0.0%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	789	100.0%
1-unit, attached	0	0.0%
2 to 4 units	0	0.0%
5 to 19 units	0	0.0%
20 or more units	0	0.0%
Mobile home & other	0	0.0%

ZIP Code 20618

Demographics

Trends

Age distribution

Race & ethnicity

Educational attainment (age 25+)

Commute to work

Households

Housing

Geography

Counties this ZIP covers

Compare with nearby ZIP codes

National ZIP rankings

Nearby ZIP codes