US ZIP Code Map

ZIP code

21758

Knoxville, MD

STANDARD

21758 covers Knoxville in Frederick County, with 4,238 people in the ACS estimate.

Map of 21758, Knoxville

ZIP code map

ACS population

4,238

Median household income

$110,694

Median home value

$388,200

About ZIP code 21758

Type

STANDARD

City

Knoxville

County

Frederick County

Timezone

America/New_York

Area codes

227, 240, 301, 304, 540, 681, 826

Land area

32.0 sq mi

Water area

2.83 sq mi

Households

1,672

Median gross rent

$1,696

Acceptable cities: Brunswick

More enterprise fields

Timezone
America/New_York
Area Codes
227, 240, 301, 304, 540, 681, 826
World Region
NA
Country
US
Housing Count
1,848
Irs Estimated Households
2,340
Population Count
4,809
Irs Estimated Population
4,540

People in 21758

Race

  • White3,988
  • Black or African American299
  • American Indian or Alaska Native11
  • Asian72
  • Other race66
  • Two or more races373

Hispanic or Latino (any race): 267

Age

  • Under 10615
  • 10 to 19678
  • 20 to 29404
  • 30 to 39537
  • 40 to 49648
  • 50 to 59779
  • 60 to 69658
  • 70 to 79340
  • 80 and older150

Income and housing in 21758

Poverty rate

5.3%

Median earnings

$69,468

Median household income

$110,694

Median home value

$388,200

Median gross rent

$1,696

Education

  • High school graduate93.1%
  • Bachelor's degree42.3%
  • Graduate degree21.8%

Places covering 21758

Cities and places

62.5% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 21758

IRS populationACS population
5,8602,930020052023

Hover a year for IRS and ACS values.

ZIP codes near 21758

  1. 21715Brownsville2.3 miPop 18 · Income —
  2. 21718Burkittsville2.8 miPop 142 · Income $102,917
  3. 21716Brunswick3.2 miPop 6,757 · Income $107,188
  4. 21779Rohrersville5.6 miPop 1,449 · Income $80,743
  5. 20180Lovettsville5.6 miPop 7,791 · Income $162,955
  6. 25425Harpers Ferry5.7 miPop 13,404 · Income $90,059
  7. 21755Jefferson5.9 miPop 5,740 · Income $134,677
  8. 25410Bakerton6.4 miPop 85 · Income —
  9. 25423Halltown7.0 miPop 160 · Income —
  10. 21777Point Of Rocks7.6 miPop 2,333 · Income $136,827
  11. 21714Braddock Heights8.1 miPop 113 · Income $208,750
  12. 21769Middletown8.2 miPop 12,695 · Income $148,821

ZIP code 21758 FAQ

What city is ZIP code 21758 in?
21758 is in Knoxville, MD.
What county is 21758 in?
21758 is in Frederick County.
What is the median household income in 21758?
The median household income in 21758 is $110,694.
Which ZIP codes are near 21758?
Use the radius tool on this page to list ZIP codes within a chosen distance of 21758.