Data Last Updated: July 1, 2025

Baltimore County, MD ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Baltimore, MD.	65 ZIP Codes (34 General, 14 PO Box, 3 Unique, & 14 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Baltimore, MD. Area Codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. There are approximately 350 area codes in use in the United States.	227, 240, 410, 443, 667
Timezone: Time zone designation within the U.S. Please note that not all areas in the U.S. observe daylight saving time which can affect actual local time for this city. There are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau.	Eastern
Local Time: The current local time for each timezone. If more than 1 time zone for this area, all local times will be shown. Counties can cross timezones, so more than 1 may be shown.	12:00:00 AM
Population: The population of Baltimore, MD from the U.S. Census 2020. Included are U.S. Citizens, permanent residents, temporary migrants, and undocumented individuals. The total population represents people who live in the city, not just those present while the Census was being completed.	854,535 [More Details]
FIPS: FIPS stands for Federal Information Processing Standards, which are a set of publicly announced standards for computer systems. A county FIPS code is a unique numeric identifier for a county in the United States, assigned by the National Institute of Standards and Technology (NIST). County FIPS codes have five digits, with the first two digits identifying the state and the last 3 indicating the county.	24005
CBSA: A Core Based Statistical Area (CBSA) is the recognized term for a region that functions around an urban core with a population of at least 10,000 people, according to the standards set by the Office of Management and Budget (OMB) in 2000. A CBSA is divided into two subsets: Metro and Micro, and these classifications are determined by population density. A Micro area is identified by a population ranging between 10,000 to 50,000, while a Metro area is defined as having a population that exceeds 50,000.	Baltimore-Columbia-Towson, MD
Land Area: The approximate amount of land area covered by Baltimore, MD in square miles. The Land Area provided by the Census Bureau is based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each city.	598 square miles
Water Area: The approximate amount of water area covered by Baltimore, MD in square miles. Calculations by the Census Bureau for Water Area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompasses features such as lakes, reservoirs, rivers, and coastal water bodies.	83 square miles
Coordinates: The latitude/longitude centroid coordinates for Baltimore County, MD.	-76.639292, 39.462711
Quick Link: Copy the direct link to the Baltimore, MDCounty page and use anywhere you like!	https://www.zip-codes.com/county/md-baltimore.asp

Baltimore, MD ZIP Code Boundaries

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Baltimore County, MD Covers 65 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 21013	General	Baldwin	4,861	0.57%
ZIP Code 21020	P.O. Box	Boring	0	0.00%
ZIP Code 21022	P.O. Box	Brooklandville	0	0.00%
ZIP Code 21023	P.O. Box	Butler	89	0.01%
ZIP Code 21027	P.O. Box	Chase	0	0.00%
ZIP Code 21030	General	Cockeysville	26,156	3.06%
ZIP Code 21031	General	Hunt Valley	11	0.00%
ZIP Code 21043 *	General	Ellicott City	48,775	--
ZIP Code 21051	General	Fork	256	0.03%
ZIP Code 21052	P.O. Box	Fort Howard	430	0.05%
ZIP Code 21053	General	Freeland	3,199	0.37%
ZIP Code 21057	General	Glen Arm	4,060	0.48%
ZIP Code 21065	Unique	Hunt Valley	0	0.00%
ZIP Code 21071	P.O. Box	Glyndon	619	0.07%
ZIP Code 21074 *	General	Hampstead	15,279	--
ZIP Code 21082	General	Hydes	815	0.10%
ZIP Code 21087	General	Kingsville	5,634	0.66%
ZIP Code 21092	P.O. Box	Long Green	0	0.00%
ZIP Code 21093	General	Lutherville Timonium	38,677	4.53%
ZIP Code 21094	P.O. Box	Lutherville Timonium	0	0.00%
ZIP Code 21102 *	General	Manchester	12,100	--
ZIP Code 21104 *	General	Marriottsville	5,686	--
ZIP Code 21105	P.O. Box	Maryland Line	56	0.01%
ZIP Code 21111	General	Monkton	5,062	0.59%
ZIP Code 21117	General	Owings Mills	59,154	6.92%
ZIP Code 21120	General	Parkton	7,178	0.84%
ZIP Code 21128	General	Perry Hall	14,861	1.74%
ZIP Code 21131	General	Phoenix	7,468	0.87%
ZIP Code 21133	General	Randallstown	30,527	3.57%
ZIP Code 21136	General	Reisterstown	34,973	4.09%
ZIP Code 21139	P.O. Box	Riderwood	0	0.00%
ZIP Code 21152	General	Sparks Glencoe	6,045	0.71%
ZIP Code 21153	P.O. Box	Stevenson	865	0.10%
ZIP Code 21155	General	Upperco	2,553	0.30%
ZIP Code 21156	General	Upper Falls	259	0.03%
ZIP Code 21161 *	General	White Hall	5,333	--
ZIP Code 21162	General	White Marsh	5,029	0.59%
ZIP Code 21163 *	General	Woodstock	7,657	--
ZIP Code 21204	General	Towson	20,967	2.45%
ZIP Code 21206 *	General	Baltimore	49,470	--
ZIP Code 21207	General	Gwynn Oak	46,595	5.45%
ZIP Code 21208	General	Pikesville	35,007	4.10%
ZIP Code 21209 *	General	Baltimore	28,659	--
ZIP Code 21210 *	General	Baltimore	14,441	--
ZIP Code 21212 *	General	Baltimore	32,317	--
ZIP Code 21215 *	General	Baltimore	54,198	--
ZIP Code 21219	General	Sparrows Point	9,594	1.12%
ZIP Code 21220	General	Middle River	44,568	5.22%
ZIP Code 21221	General	Essex	43,381	5.08%
ZIP Code 21222	General	Dundalk	59,062	6.91%
ZIP Code 21224 *	General	Baltimore	54,266	--
ZIP Code 21227	General	Halethorpe	35,837	4.19%
ZIP Code 21228	General	Catonsville	50,418	5.90%
ZIP Code 21229 *	General	Baltimore	43,464	--
ZIP Code 21234	General	Parkville	67,308	7.88%
ZIP Code 21236	General	Nottingham	40,555	4.75%
ZIP Code 21237	General	Rosedale	31,477	3.68%
ZIP Code 21239 *	General	Baltimore	26,605	--
ZIP Code 21244	General	Windsor Mill	38,015	4.45%
ZIP Code 21250	Unique	Baltimore	3,391	0.40%
ZIP Code 21252	Unique	Towson	5,775	0.68%
ZIP Code 21282	P.O. Box	Pikesville	0	0.00%
ZIP Code 21284	P.O. Box	Towson	0	0.00%
ZIP Code 21285	P.O. Box	Towson	2	0.00%
ZIP Code 21286	General	Towson	21,470	2.51%

* Indicates a Multi County ZIP Code. These ZIP Codes partially cross over into Baltimore, MD, but will mostly cover area in a different County. Not included in % of Population calculations.

Important Baltimore, MD Information

Baltimore County, MD Covers 65 ZIP Codes. This includes 34 General ZIP Codes, 14 PO Box ZIP Codes, and 3 Unique (reserved for Business and Volume Mail Receivers). There are also 14 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Baltimore County.

The population for Baltimore County is 854,535, according to the U.S. Census. Population Density is 1,428.99 persons per square mile. With 350,163 Housing Units, the Average Household Size is 2.52 persons. There are 329,964 Family Households with an Average Family Size of 3.21 persons. 4.76% of the population is without Health Insurance. The 62.62% Employment Rate is 2.82% above the national average of 59.8%.588,072 people aged 25+ have some educational achievement, with 41.42% (or 243,592 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 5 area codes serving this area including227, 240, 410, 443 and 667. Baltimore is also located in the Eastern timezone and the current local time is shown above.

Baltimore is part of the Baltimore-Columbia-Towson, MD Core Based Statistical Area (CBSA). Its CBSA Code is 12580.It is classified as a metro area, which means the combined population is 50,000 or more (at its core).

CBSAs are defined by the OMB as geographic areas that have at least one core with a population of 10,000 or more (for a micro area) and adjacent territory with a high degree of social and economic integration. CBSA codes are commonly used to accurately file Medicare claims and to verify applicable incentives using a patient's ZIP Code.

ZIP Codes in Baltimore, MD have 331,713 Residential mailboxes and 19,339 Business mailboxes.There are 19,561 businesses with a total of 326,688 employees. That is an average of 16.7 employees per business. Annual payroll for these businesses is $19,943,712,000. Other Demographics

Baltimore County Demographic Profile

Population & People

Total Population

854,535

Income

Median Household Income

$90,904

Housing

Total Housing Units

350,163

Health

Without Healthcare Coverage

4.76%

Business & Economy

Total Businesses

19,561

Families

Total Households

329,964

Employment

Employment Rate

62.62%

Education

Bachelor's Degree or Higher

41.42%

Total Population: Total number of people from the 2020 U.S. Census for Baltimore, MD. This reflects the exact count of this area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.	854,535
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Baltimore, MD. This is derived from known delivery information, household occupancy rates, household size, and more to come up with an accurate estimation for the current population. IMPORTANT: This does not include population totals for persons in nursing homes, correctional facilities, or other institutions. This is an estimation of the household population based on US Postal Service delivery information.	831,698
Total Households: Total number of Households from the 2020 U.S. Census for Baltimore, MD. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	329,964
Total Housing Units: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.	350,163
Average Household Size: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.52
Average Family Size: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	3.21

Other Baltimore Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	331,713
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	19,339
Total Delivery Receptacles: The total number of delivery receptacles. This includes curb side mailboxes, centralized units, PO Boxes, NDCBU, and contract boxes. This count is for Residential and Business combined.	415,987
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	198,216
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	78,895

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	19,561
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$4,900,770,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$19,943,712,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	326,688

Sum of all ZIP Codes assigned Baltimore, MD as their primary County.

References

U.S. Postal Service [Last Updated: 7/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 7/1/2025], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023], https://www.census.gov