20659

Zip code 20659: Mechanicsville, Maryland

Q: What city is zip code 20659?

20659 is assigned to Mechanicsville, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 20659 in?

20659 is mostly in St. Mary's County, but it extends into 1 other county.

Q: What is the population of 20659?

About 24,324 people live in 20659, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 20659?

The median household income in 20659 is $121,654.

Q: What zip codes are near 20659?

The closest zip codes to 20659 are 20660, 20624, 20656, 20621, 20612.

Residential delivery areaSt. Mary's CountyEastern Time

Population

24,324

Median household income

$122K

U.S. $81K

Median home value

$417K

U.S. $333K

Median rent

$1,527/mo

U.S. $1,413

Median age

37.5

U.S. 38.9

Land area

97 sq mi

251 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 20659

20659 is a small-town zip code in Mechanicsville, Maryland (St. Mary's County), covering 97 sq mi of land. About 24,324 people live here, or 251 per square mile. The median resident is 37.5 years old, compared with 38.9 nationally.

The median household earns $121,654 a year, 51% above the national median of $80,734. 7.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $416,900, or 3.4 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 89% of occupied homes are lived in by their owners, and renters pay a median of $1,527 a month.

28% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 40.8 minutes each way, and 15% of workers work from home. The most common jobs among working residents are in construction and repair; management; and office and administrative support.

How 20659 compares

Sorted from highest to lowest national percentile

Government workers29.1%
98th
U.S. 14.5% · MD 22.5%77th of 444 in MD
Average commute40.8 min
97th
WeaknessU.S. 26.4 min · MD 31.1 min45th of 421 in MD
Homeownership rate88.6%
94th
StrengthU.S. 65.2% · MD 67.6%135th of 441 in MD
Veterans11.8%
94th
U.S. 6.2% · MD 6.8%66th of 446 in MD
Tech workers7.7%
93rd
U.S. 3.8% · MD 6.4%102nd of 444 in MD
Residents under 1828%
91st
U.S. 22% · MD 22.2%34th of 446 in MD
Median earnings per worker$72,180
89th
StrengthU.S. $49,666 · MD $61,200142nd of 443 in MD
Median household income$121,654
85th
StrengthU.S. $80,734 · MD $103,678158th of 414 in MD
Per capita income$51,368
74th
U.S. $44,673 · MD $52,979229th of 446 in MD
Median home value$416,900
65th
U.S. $332,700 · MD $419,900216th of 421 in MD
Work from home14.5%
59th
U.S. 15.1% · MD 19.3%258th of 444 in MD
Median gross rent$1,527
57th
U.S. $1,413 · MD $1,705197th of 338 in MD
Broadband access92.9%
57th
U.S. 91% · MD 92.4%233rd of 441 in MD
Uninsured rate7.6%
56th
U.S. 8.4% · MD 6.3%73rd of 444 in MD
Self-employed workers8.7%
42nd
U.S. 10% · MD 8.7%233rd of 444 in MD
Bachelor's degree or higher27.5%
40th
U.S. 35.7% · MD 43.4%307th of 445 in MD
Population24,324
39th
U.S. 334,922,499 · MD 6,206,011113th of 446 in MD
Median age37.5
38th
U.S. 38.9 · MD 39.4340th of 446 in MD
Residents 65 and older14%
30th
U.S. 17.2% · MD 16.7%341st of 446 in MD
Poverty rate7.5%
28th
U.S. 12.5% · MD 9.4%200th of 441 in MD
Population density251/sq mi
23rd
U.S. 95/sq mi · MD 639/sq mi276th of 446 in MD
Housing vacancy3.9%
21st
U.S. 10.1% · MD 7.7%291st of 441 in MD
Income inequality (Gini)0.400
21st
U.S. 0.483 · MD 0.456232nd of 438 in MD
Diversity index26.4
19th
U.S. 61.4 · MD 67.7324th of 446 in MD
Foreign-born residents2.7%
16th
U.S. 14.1% · MD 16.6%332nd of 446 in MD
Healthcare workers6.7%
13th
U.S. 9.7% · MD 9%295th of 444 in MD
Unemployment rate2.7%
12th
StrengthU.S. 5.2% · MD 4.9%305th of 444 in MD
Rent-burdened renters32.3%
6th
StrengthU.S. 51.1% · MD 51.5%317th of 404 in MD

Measure	20659	St. Mary's	MD	U.S.	National percentile	Rank in MD
Government workers	29.1%	33.2%	22.5%	14.5%	98th	77th of 444
Average commuteWeakness	40.8 min	29.9 min	31.1 min	26.4 min	97th	45th of 421
Homeownership rateStrength	88.6%	73.2%	67.6%	65.2%	94th	135th of 441
Veterans	11.8%	14.4%	6.8%	6.2%	94th	66th of 446
Tech workers	7.7%	7.6%	6.4%	3.8%	93rd	102nd of 444
Residents under 18	28%	23.9%	22.2%	22%	91st	34th of 446
Median earnings per workerStrength	$72,180	$70,741	$61,200	$49,666	89th	142nd of 443
Median household incomeStrength	$121,654	$119,446	$103,678	$80,734	85th	158th of 414
Per capita income	$51,368	$53,417	$52,979	$44,673	74th	229th of 446
Median home value	$416,900	$407,600	$419,900	$332,700	65th	216th of 421
Work from home	14.5%	17.5%	19.3%	15.1%	59th	258th of 444
Median gross rent	$1,527	$1,747	$1,705	$1,413	57th	197th of 338
Broadband access	92.9%	93.1%	92.4%	91%	57th	233rd of 441
Uninsured rate	7.6%	3.9%	6.3%	8.4%	56th	73rd of 444
Self-employed workers	8.7%	6.7%	8.7%	10%	42nd	233rd of 444
Bachelor's degree or higher	27.5%	36.5%	43.4%	35.7%	40th	307th of 445
Population	24,324	115,126	6,206,011	334,922,499	39th	113th of 446
Median age	37.5	37.2	39.4	38.9	38th	340th of 446
Residents 65 and older	14%	14%	16.7%	17.2%	30th	341st of 446
Poverty rate	7.5%	8%	9.4%	12.5%	28th	200th of 441
Population density	251/sq mi	321/sq mi	639/sq mi	95/sq mi	23rd	276th of 446
Housing vacancy	3.9%	8.5%	7.7%	10.1%	21st	291st of 441
Income inequality (Gini)	0.400	0.409	0.456	0.483	21st	232nd of 438
Diversity index	26.4	47.7	67.7	61.4	19th	324th of 446
Foreign-born residents	2.7%	4.3%	16.6%	14.1%	16th	332nd of 446
Healthcare workers	6.7%	5.9%	9%	9.7%	13th	295th of 444
Unemployment rateStrength	2.7%	3.6%	4.9%	5.2%	12th	305th of 444
Rent-burdened rentersStrength	32.3%	45.7%	51.5%	51.1%	6th	317th of 404

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

21%

5–17

18–24

25–34

16%

35–44

11%

45–54

13%

55–64

65–74

75+

Median age

37.5

Under 18

28%

65 and over

14%

Race and ethnicity

White85%
Black5%
Hispanic3%
Asian1%
Native American0%
Pacific Islander0%
Other0.3%
Multiracial5%

Diversity index

26.4

U.S. 61.4

Foreign-born

2.7%

U.S. 14.1%

Born in state

59.4%

Language spoken at home (households)

English only

92%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 8,300
Average household size: 2.9
Family households: 79%
Married couples: 63.1%
Living alone: 16.9%
Veterans (of adults): 11.8%
Male / female: 50% / 50%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

12%

$75–100k

15%

$100–150k

17%

$150–200k

15%

$200k+

27%

Median household income

20659

$121,654

St. Mary's Co.

$119,446

Maryland

$103,678

United States

$80,734

Per capita income

$51,368

U.S. $44,673

Poverty rate

7.5%

U.S. 12.5%

Households earning $150K+

41.3%

U.S. 23%

Income inequality (Gini)

0.400

U.S. 0.483

Housing

Median home value

20659

$416,900

St. Mary's Co.

$407,600

Maryland

$419,900

United States

$332,700

Median gross rent

20659

$1,527

St. Mary's Co.

$1,747

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

95%

2–4 units

5–19 units

20+ units

0.1%

Mobile home

Boat, RV, van

0.2%

Housing units: 8,633
Owner-occupied: 88.6%
Vacant: 3.9%
Median year built: 1988
Median rooms: 7.2
Renters paying 30%+ of income: 32.3%
Renters paying 50%+ of income: 20.6%
Home value to income: 3.4× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

73%

Carpooled

Transit

Walked

0.8%

Bicycle

0.2%

Worked from home

15%

Other

0.3%

Commute time (one way)

<10 min

10–19

15%

20–29

20%

30–44

22%

45–59

12%

60+

27%

Average commute

40.8 min

U.S. 26.4 min

Unemployment

2.7%

U.S. 5.2%

In labor force

68.3%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Construction and repair

14%

Management

12%

Office and admin

10%

Business and finance

10%

Computer and math

Sales

Healthcare

Education

Engineering and science

Transportation and moving

Food service

Cleaning and personal care

Police and fire

Production

Legal and social services

Farming, fishing and forestry

Arts, media and sports

0.7%

Industries

Public administration

20%

Health care and social assistance

13%

Construction

12%

Professional and technical services

10%

Retail

Education

Other services

Transportation, warehousing and utilities

Finance, insurance and real estate

Restaurants and hotels

Manufacturing

Admin, support and management

Agriculture and mining

Arts and recreation

Wholesale

Information

0.5%

Median earnings per worker

$72,180

U.S. $49,666

Self-employed

8.7%

U.S. 10%

Government workers

29.1%

U.S. 14.5%

Nonprofit workers

9.1%

U.S. 8.8%

Median earnings by type of work

Type of work	20659	U.S.
Management, business, science and arts	$93,815	$74,888
Service	$25,527	$26,804
Sales and office	$48,214	$40,476
Construction and maintenance	$68,750	$49,199
Production and transportation	$39,325	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

32%

Some college

23%

Associate's

10%

Bachelor's

15%

Graduate

12%

High school graduate or higher: 92.8%
Bachelor's degree or higher: 27.5%
Graduate or professional degree: 12%
Households with broadband: 92.9%
Cable, fiber or DSL: 81%
No internet access: 5.9%
Without health insurance: 7.6%
Limited-English households: 1.1%

Geography

City (USPS): Mechanicsville
State: Maryland
County: St. Mary's County
Center point: 38.4079° N, 76.7320° W
Land area: 97 sq mi
Water area: 9.5 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

20659 spans 2 counties

St. Mary's County96% of land
Charles County4% of land

Cities and towns within this zip

Mechanicsville (unincorporated)5% of zip
Golden Beach (unincorporated)4% of zip
Charlotte Hall (unincorporated)3% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 20659

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
20660	Morganza, MD	3 mi	14	—	—
20624	Clements, MD	4.8 mi	796	$104,545	$430,600
20656	Loveville, MD	5.5 mi	87	—	—
20621	Chaptico, MD	6.8 mi	958	—	$481,100
20612	Benedict, MD	7.6 mi	148	$41,118	—
20622	Charlotte Hall, MD	7.9 mi	5,185	$124,063	$438,900
20637	Hughesville, MD	8.2 mi	6,133	$160,121	$555,400
20609	Avenue, MD	8.8 mi	714	$118,102	$568,400
20627	Compton, MD · PO box	9.2 mi	—	—	—
20635	Helen, MD · PO box	9.4 mi	—	—	—
20636	Hollywood, MD	9.7 mi	10,486	$163,690	$474,000
20618	Bushwood, MD	9.8 mi	1,705	$105,508	$355,000

Zip codes like 20659 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 20659

What city is zip code 20659?

20659 is assigned to Mechanicsville, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 20659 in?

20659 is mostly in St. Mary's County, but it extends into 1 other county.

What is the population of 20659?

About 24,324 people live in 20659, according to the Census Bureau's American Community Survey.

What time zone is 20659 in?

20659 is in Eastern Time.

What is the median household income in 20659?

The median household income in 20659 is $121,654.

What zip codes are near 20659?

The closest zip codes to 20659 are 20660, 20624, 20656, 20621, 20612.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 20659, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.