US ZIP Code
20646

La Plata, MD

Charles County  ·  Maryland

● Active
👥 21,601 Population ↓ 2% since 2019
💰 $130,008 Median HH Income
▲ 70% above avg ↑ 26% since 2019
🎂 43.4 Median Age ↑ 6% since 2019
🏠 $435,100 Median Home Value
▲ 56% above avg ↑ 21% since 2019
🎓 42.8% College Grads
▲ 10% above avg
📊 3.3% Unemployment
▼ 33% below avg ↑ 9% since 2019
ZIP Code Details
ZIP Code20646
CityLa Plata
StateMaryland (MD)
CountyCharles County
Area Code227/240/301
Elevation158 ft
Latitude38.520653
Longitude-76.999915
TimezoneNew York (DST)
FIPS24017
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.8% (10,749) Female 50.2% (10,852) ♀

Race & Ethnicity

White: 61.8%Hispanic: 4.3%Black: 23.8%Asian: 3.2%Other: 6.1%Race
White61.8%
Hispanic4.3%
Black23.8%
Asian3.2%
Other6.1%

Age Breakdown

Under 5
4%
5–17
17%
18–24
8%
25–44
23%
45–64
31%
65+
8%

Key Indicators

Median Age43.4 yrs ↑ 6% since 2019
Avg Household Size2.74
Below Poverty3.9% ▼ 61% below avg
College Grads42.8% ▲ 10% above avg
Unemployment3.3% ▼ 33% below avg
No HS Diploma138 (0.9%)
HS Graduate3,844 (26.3%)
Some College2,475 (16.9%)
Associates1,908 (13.1%)
Bachelors1,331 (9.1%)
Graduate Degree4,920 (33.7%)

Education

No HS: 0.9%HS Grad: 26.3%Some College: 16.9%Associates: 13.1%Bachelors: 9.1%Graduate: 33.7%Edu
No HS0.9%
HS Grad26.3%
Some College16.9%
Associates13.1%
Bachelors9.1%
Graduate33.7%
Housing & Income

Housing Tenure

Owner: 85.1%Renter: 14.9%Tenure
Owner85.1%
Renter14.9%

Home Value Distribution

Under $50k
2%
$50k–100k
0%
$100k–150k
1%
$150k–200k
0%
$200k–300k
16%
$300k–500k
47%
Over $500k
33%

Financials

Median HH Income$130,008 ▲ 70% above avg ↑ 26% since 2019
Median Home Value$435,100 ▲ 56% above avg ↑ 21% since 2019
Home/Income Ratio3.3x (nat avg ~3.5x)
Median Rent$1,486/mo ↑ 5% since 2019
Total Units8,263
Vacant Units606
Avg HH Size2.74

Income Distribution

Under $25k
7%
$25k–50k
7%
$50k–75k
13%
$75k–100k
10%
$100k–150k
24%
$150k–200k
13%
Over $200k
27%
Employment & Commute

How People Get to Work

Drove Alone
78%
Public Transit
2%
Walked
1%
Work From Home
19%

Commute Time

Under 15 min
20%
15–30 min
22%
30–45 min
17%
Over 45 min
41%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
5%
1960s–1970s
19%
1980s–1990s
17%
2000+
57%

Summary

Total Units8,263
Vacant606
Owner Occupied85.1%
Renter Occupied14.9%
Avg HH Size2.74
Frequently Asked Questions
ZIP code 20646 is in La Plata, MD, in Charles County.
ZIP code 20646 is located in Maryland (MD).
ZIP code 20646 is in Charles County, MD.
ZIP 20646 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 20646 is 21,601 people (ACS 2023).
The median household income in ZIP code 20646 is $130,008 (ACS 2023).
The median home value in ZIP 20646 is $435,100 (ACS 2023).
About ZIP Code 20646

ZIP code 20646 is located in La Plata, Maryland, within Charles County. With a population of 21,601, this is a moderately populated ZIP code with a middle-aged community — the median age is 43.4 years. Economically, 20646 is a upper-middle-income ZIP code: the median household income of $130,008 is significantly above the national average.

Real estate in ZIP code 20646 represents a premium housing market. The median home value of $435,100 is significantly above the national average. Renters can expect to pay around $1,486 per month in median rent. Homeownership is strong here — 85.1% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 21% since 2019.

The population of 20646 is majority White (61.80%). Residents are well-educated — 42.8% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 3.9%. Household income has grown by 26% since 2019.

The unemployment rate in 20646 stands at 3.3%, which is below the national average. About 18% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 71%.

Overall, ZIP code 20646 in La Plata, MD is characterized as upper-middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 21,601 residents, a median household income of $130,008, and a median home value of $435,100, it offers a clear picture of life in this part of Maryland.