ZIP Code 20851 - Rockville Map and Data

Official Zip Code NameRockville
Zip Code StateMaryland
Zip Code TypeNon-Unique
Primary County: Montgomery
Area Code227 / 240 / 301
Current Population:14191
Racial Majority:White 40.45%
Public School Racial Majority:Hispanic 43.5%
Unemployment Rate:3.3%
Median Household Income$73579
Average Adjusted Gross Income$59500
School Test Performance:Below Average
Average Commute Time30.5 Minutes
Time Zone:Eastern Daylight Time
Elevation Range361 - 361 ft.
Area2 Sqm.
Coordinates(Y,X)39.07833700, -77.12201700

Map of ZIP Code 20851 Border

Zip Code 20851 Description

Zip Code 20851 is located in the state of Maryland in the Washington D.C. metro area. Zip code 20851 is primarily located in Montgomery County. The official US Postal Service name for 20851 is ROCKVILLE, Maryland. Portions of zip code 20851 are contained within or border the city limits of Rockville, MD, North Bethesda, MD, Aspen Hill, MD, and Wheaton-Glenmont, MD. Zip code 20851 is within area code 240 and area code 301. 20851 can be classified socioeconically as a Middle Class class zipcode in comparison to other zipcodes in Maryland.

The current unemployment level in 20851 is 3.3% which is lower than the current county unemployment level of 3.4% and is lower than the current state unemployment at 3.7% and lower than the current national unemployment rate at 3.9%.

According the 2010 US Census, the population of 20851 increased to 14191 from 13038 over the past 10 years. The majority ethnicity residing in 20851 is White while the majority ethnicity attending 20851 public schools is Hispanic. 43.5% of students in 20851 public schools receive or are eligible to participate in free or reduced lunch programs.

 White 5805 40.45% 5850 -1%
 Black Or African American 1254 8.74% 1326 -5%
 Hispanic 4384 30.55% 4431 -1%
 American Indian Or Alaskan Native 0 0% 52 -100%
 Asian 2343 16.33% 2142 +9%
 Native Hawaiian & Other Pacific Islander 0 0% 14 -100%
 Other Race 51 0.4% 51 +12%
 Two Or More Races 325 3.55% 325 +57%

Zip Code 20851 Race/Ethnicity

 White 26.3%
 Black Or African American 13.5%
 Hispanic 43.5%
 Asian 12.2%
 Hawaii/Pacific Islander 0%
 American Indian Or Alaskan Native 0.1%
 Two or More Races 4.2%

Zip Code 20851 Public School Race/Ethnicity Profile

Total Population1419113038
Male Population50.60%
Female Population49.40%
Total Households4838
Test Score PerformanceBelow Average
Percentage of Students Eligible For
Free or Reduced Lunch
Percentage of Public Schools with
Title 1 Status
Median Household Income$73579
Income Under $50K Per Year28.30%
Income $50K to $100K Per Year40.80%
Income Above $100K Per Year30.90%
20851 US Congressional District
DistrictRepresentativeParty Affiliation
Maryland District 8Jamie RaskinDemocrat
Related Maps: Map of All Maryland Congressional Districts

Average Real Estate Asking Price$330974
Average Real Estate Sale Price$289152
Current Unemployment Level 3.3%
Previous Month Unemployment Level2.8%
Unemployment Level 1 Year Ago5.5%
2012 Hardiness ZoneZone 7a: 0F to 5F
1990 Hardiness ZoneZone 6b: -5F to 0F
Köppen Climate ClassificationCfa - Humid Subtropical Climate
Ecoregion 64c - Piedmont Uplands
Average First Frost DatesOctober 11 - 20
Average Last Frost DatesApril 21 - 31

Zip Code 20851 Annual Climate Data

Avg Min Temp (°F)23263342516065635744362844
Avg Max Temp (°F)41445465748186847766554564
Avg Precip (In.)3.322.853.883.254.393.763.923.744.123.423.433.2243.3
Core Based Statistical
Area (CBSA)
Washington-Arlington-Alexandria, DC-VA-MD-WV
CBSA Type20851
CBSA Population5500613
Time ZoneEastern Daylight Time
IANA Time ZoneAmerica/New_York
Follows DSTYes
GMT Difference-5 Hours
List of High Schools in Zipcode 20851
Montgomery High SchoolMontgomery
Rockville High SchoolMontgomery
List of Middle Schools in Zipcode 20851
Julius West Middle SchoolMontgomery
Wood Middle SchoolMontgomery
East Rockville