ZIP Code 20645, Maryland
ZIP Code 20645 profile, demographic data, and geographic information.
ZCTA5 20645 is a 5-digit ZIP Code area located in Charles County, Maryland. As of official census estimates, it has a reported population of 814. The land area covers 1.38 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 814 | ±314 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 50.9 yrs | ±11.8 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 298 | ±83 | 2020-2024 / Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).
Housing & Real Estate Profile
| Housing Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Total Housing Units | 298 | ±83 |
| Occupied Housing Units | 298 | ±83 |
| Vacant Housing Units | 0 | ±14 |
| Median Home Value | $531,500 | ±$83,515 |
| Median Gross Rent | Suppressed | — |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $191,429 | ±$93,836 |
| Per Capita Income | $85,918 | ±$34,325 |
| Poverty Rate | 0% | ±1.7% |
| Population Below Poverty Level | 0 | ±14 |
| Unemployment Rate | 0% | ±4.2% |
| Civilian Labor Force, Employed | 330 | ±147 |
| Broadband Internet Rate | 89.6% | ±34.5% |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 174,478 (2024)
ID: 166364
|
County | Official County Government |
Contact: COUNTY COMMISSIONER PRESIDENT
PO BOX 2150, LA PLATA MD 20646-2150
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | PK-05 | Loveville, MD | |
| Regular School Nearby | PK-05 | Leonardtown, MD | |
| Regular School Nearby | 09-12 | Morganza, MD | |
| Regular School Nearby | PK-07 | Colonial Beach, VA | |
| Regular School Nearby | 08-12 | Colonial Beach, VA | |
| Regular School Nearby | PK-05 | Newburg, MD | |
| Regular School Nearby | PK-05 | Chaptico, MD | |
| Regular School Nearby | PK-05 | King George, VA | |
| Regular School Nearby | PK-05 | Leonardtown, MD | |
| Regular School Nearby | PK-05 | Mechanicsville, MD |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
College of Southern Maryland
|
College | 18.8 mi away | 8730 Mitchell Rd, La Plata, MD, 20646-0910 |
3019342251
|
|
COOPER BRANCH
|
Library | 4.3 mi away | 20 WASHINGTON AVE, COLONIAL BEACH, VA, 22443 |
(804) 472-3820
|
|
CHARLOTTE HALL BRANCH
|
Library | 14.2 mi away | 37600 NEW MARKET ROAD, CHARLOTTE HALL, MD, 20622 |
(301) 884-2211
|
|
L. E. SMOOT MEMORIAL LIBRARY
|
Library | 14.5 mi away | 9533 KINGS HIGHWAY, KING GEORGE, VA, 22485 |
(540) 775-2147
|
|
MONTROSS BRANCH
|
Library | 14.7 mi away | 56 POLK ST, MONTROSS, VA, 22520 |
(804) 472-3820
|
|
LEONARDTOWN BRANCH
|
Library | 15.2 mi away | 23630 HAYDEN FARM LN., LEONARDTOWN, MD, 20650 |
(301) 475-2846
|
|
MOBILE LIBRARY
|
Library | 15.2 mi away | 23630 HAYDEN FARM LN, LEONARDTOWN, MD, 20650 |
(301) 475-2846
|
|
CHARLES COUNTY DETENTION CENTER LIBRARY
|
Library | 16.1 mi away | 6905 CRAIN HWY, LA PLATA, MD, 20646 |
(301) 932-3100
|
|
LA PLATA BRANCH
|
Library | 16.3 mi away | 2 GARRETT AVENUE, LA PLATA, MD, 20646 |
(301) 934-9001
|
|
MOBILE LIBRARY TRUCK
|
Library | 16.3 mi away | 2 GARRETT AVENUE, LA PLATA, MD, 20646 |
(301) 934-9001
|
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.
Climate & Weather Observations
NOAA Monthly Climate Normals
Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at MECHANICSVILLE 5 NE, MD US, located 16.9 miles from ZCTA5 20645. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 44.2° | 24.8° | 34.5° | 3.29" | 5.0" |
| February | 47.6° | 26.2° | 36.9° | 2.97" | 6.2" |
| March | 55.9° | 32.6° | 44.2° | 4.24" | 1.8" |
| April | 67.3° | 42.5° | 54.9° | 3.31" | 0.1" |
| May | 73.7° | 52.0° | 62.9° | 4.32" | 0.0" |
| June | 81.5° | 60.9° | 71.2° | 4.19" | 0.0" |
| July | 85.3° | 65.9° | 75.6° | 4.57" | 0.0" |
| August | 83.3° | 64.2° | 73.8° | 4.84" | 0.0" |
| September | 76.7° | 57.7° | 67.2° | 4.87" | 0.0" |
| October | 66.1° | 45.7° | 55.9° | 4.18" | 0.0" |
| November | 57.3° | 35.5° | 46.4° | 3.34" | 0.0" |
| December | 48.1° | 28.6° | 38.3° | 3.99" | 2.0" |
Source: NOAA U.S. Climate Normals (1991–2020).
Local Weather Forecast
Weather forecast data is currently unavailable in the local cache.
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Rock Point CDP | CDP | 4.1 mi | — |
| Cobb Island CDP | CDP | 4.2 mi | — |
| Colonial Beach town | Town | 5.1 mi | — |
| Dahlgren Center CDP | CDP | 6.8 mi | — |
| Dahlgren CDP | CDP | 8.7 mi | — |
| Mechanicsville CDP | CDP | 12.8 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 20645. • Official Source Dataset →
- Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
- Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.