Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: October 1, 2021

ZIP Codes for City of Columbia, MD

Columbia, MD Covers 4 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 20588UniqueHoward0301
ZIP Code 21044StandardHoward41,704443 / 410 / 240 / 667 / 301
ZIP Code 21045StandardHoward38,288443 / 410 / 240 / 667 / 301
ZIP Code 21046StandardHoward15,080443 / 410 / 240 / 667 / 301

Timezone(s):Eastern (GMT -05:00)
Counties:HOWARD, MD
Population:99,615 (More Details)
Male Population:47,891
Female Population:51,724
Median Age:38
ZIP Codes:4
Area Codes:5
Total Area:253 square miles (county)
Land Area:251 square miles (county)
Water Area:2 square miles (county)

Columbia, MD Demographic Information *

Total population99,615
Male population47,891
Female population51,724
Median age (years)37.5
White Population55,322
Black Population25,231
Indian Population393
Asian Population11,390
Hawaiian Population44
Hispanic Population7,884
Median age (Male)35.6
Median age (Female)38.9
Total households39,562
Family households (families)26,084
Average household size2.5
Average family size3.09
Total housing units41,239
* Demographic data is based on 2010 Census.

Columbia, MD Other Information

208 Cities within 30 miles of Columbia, MD Products


  1. U.S. Postal Service [Last Updated: 10/1/2021],
  2. Internal Data Creation [Last Updated: 10/1/2021],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],