Zip Code 21791 Map and Profile

Official Zip Code NameUnion Bridge
Zip Code StateMaryland
Zip Code TypeNon-Unique
Primary County: Frederick
Secondary County: Carroll
Area Code410 / 443 / 667
Current Population:5281
Racial Majority:White 91.8%
Public School Racial Majority:White 91.3%
Unemployment Rate:4.3%
Median Household Income$67181
Average Adjusted Gross Income$71210
School Test Performance:Above Average
Average Commute Time33.3 Minutes
Time Zone:Eastern Standard Time
Elevation Range456 - 564 ft.
Area47 Sqm.
Coordinates(Y,X)39.53559500, -77.18948100

Zip Code 21791 Description

Zip Code 21791 is located in the state of Maryland in the Baltimore metro area. Zip code 21791 is primarily located in Frederick County. Portions of 21791 are also located in Carroll County. The official US Postal Service name for 21791 is UNION BRIDGE, Maryland. Portions of zip code 21791 are contained within or border the city limits of Union Bridge, MD, . Zip code 21791 is within area code 410, area code 443 and area code 301. 21791 can be classified socioeconically as a Middle Class class zipcode in comparison to other zipcodes in Maryland.

The current unemployment level in 21791 is 4.3% which is higher than the current county unemployment level of 3.9% and is lower than the current state unemployment at 5.8% and lower than the current national unemployment rate at 4.8%.

According the 2010 US Census, the population of 21791 decreased to 5281 from 5413 over the past 10 years. The majority ethnicity residing in 21791 is White while the majority ethnicity attending 21791 public schools is White. 28.3% of students in 21791 public schools receive or are eligible to participate in free or reduced lunch programs.

 White 5180 91.8% 4993 +4%
 Black Or African American 216 3.83% 123 +76%
 Hispanic 185 3.28% 89 +108%
 American Indian Or Alaskan Native 1 0.02% 7 -86%
 Asian 28 0.5% 14 +100%
 Native Hawaiian & Other Pacific Islander 0 0% 0 +0%
 Other Race 3 0.14% 3 +167%
 Two Or More Races 52 0.44% 52 -52%

Zip Code 21791 Race/Ethnicity

 White 91.3%
 Black Or African American 3%
 Hispanic 2.8%
 Asian 0.8%
 Hawaii/Pacific Islander 0.1%
 American Indian Or Alaskan Native 0.1%
 Two or More Races 2%

Zip Code 21791 Public School Race/Ethnicity Profile

Total Population52815413
Male Population50.10%
Female Population49.90%
Total Households1907
Test Score PerformanceAbove Average
Percentage of Students Eligible For
Free or Reduced Lunch
Percentage of Public Schools with
Title 1 Status
Median Household Income$67181
Income Under $50K Per Year33.30%
Income $50K to $100K Per Year39.30%
Income Above $100K Per Year27.40%
21791 US Congressional District
DistrictRepresentativeParty Affiliation
Maryland District 8Jamie RaskinDemocrat
Maryland District 1Andy HarrisRepublican
Related Maps: Map of All Maryland Congressional Districts

Average Real Estate Asking Price$623343
Average Real Estate Sale Price$219643
Current Unemployment Level 4.3%
Previous Month Unemployment Level4.3%
Unemployment Level 1 Year Ago4.6%
2012 Hardiness ZoneZone 6b: -5F to 0F
1990 Hardiness ZoneZone 6b: -5F to 0F
Köppen Climate ClassificationDfa - Humid Continental Hot Summers
Ecoregion 64c - Piedmont Uplands
Average First Frost DatesOctober 1 - 10
Average Last Frost DatesMay 1 - 10

Zip Code 21791 Annual Climate Data

Avg Min Temp (°F)20223038495863615341322541
Avg Max Temp (°F)39445364748286847766554464
Avg Precip (In.)3.372.663.733.474.393.983.533.
Core Based Statistical
Area (CBSA)
Baltimore-Towson, MD
CBSA Type21791
CBSA Population2699667
Time ZoneEastern Standard Time
IANA Time ZoneAmerica/New_York
Follows DSTYes
GMT Difference-5 Hours