ZIP Code 21758 - Knoxville Maryland

ZIP Code 21758 is located in Knoxville Maryland. Portions of 21758 are also in Brunswick and Garretts Mill and Rosemont and Sandy Hook and Yarrowsburg. 21758 is primarily within Frederick County, with some portions in Washington County. Regionally, it is located in Metro DC.

Stats Demographics Geography Politics Schools Climate Related Pages

ZIP Code 21758 Quick Stats

ZIP Code NameKnoxville
Primary CountyFrederick County
ZIP Code TypeStandard
Population (2022)4,610
Area Code(s)240 / 301
Current Time
EDT

ZIP Code 21758 Map

21758 Demographics

21758 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Maryland based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 21758 is White. The majority race/ethnicity attending public schools in 21758 is White. The current unemployment level in 21758 is 3.1%.

Population4,610
Population Growth Rate-8.05%
Population Density127 People per Square Mile
Total Households1,738
Percentage High Income Households12.4%
Median Houshold Income (2021)$96,863
Average Adjusted Gross Income (2020)$84,580
Current Unemployment Rate (February 2024)3.1%
Majority Race/EthnictyWhite - 88.19%
Public School Majority Race/EthnictyWhite - 89.71%

21758 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White3,83188.19%
Black2636.05%
Hispanic932.14%
Asian1503.45%
Native American70.16%
Hawaiian/Pac. Islander00%

21758 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White18391.5%
Black42%
Hispanic94.5%
Asian31.5%
Native American10.5%
Hawaiian/Pac. Islander00%

21758 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College2567.95%
Bachelor Degree71322.15%
High School Diploma1,12835.04%
No High School Diploma641.99%
GED or Alternate571.77%
1 or More Years of College36711.4%
Associates Degree2598.05%
Masters Degree3199.91%
Professional Degree401.24%
Doctorate Degree160.5%

21758 Geography

Coordinates39.34743881,-77.66059113
Adjacent ZIP Codes
Cities/Towns in 21758
RegionsMetro DC
Hagerstown Area
Metropolitan/Micropolitan Stat AreasWashington-Arlington-Alexandria, DC-VA-MD-WV
Hagerstown-Martinsburg, MD-WV
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area36 Square Miles

21758 Politics

US Congressional Districts in 21758
Maryland State Senate Districts in 21758
Maryland State House of Delegates Districts in 21758

21758 Weather and Climate Data

Plant Hardiness ZoneZone 7a: 0F to 5F
Average First Frost DateOctober 11 - 20
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion64c - Piedmont Uplands

21758 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)22243241516064625543342743
Avg Max Temp (°F)41455566768488868069564666
Avg Precip (In.)2.852.563.53.283.653.63.643.533.592.913.122.9239.15

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