Cambridge, MD ZIP Codes

One ZIP code serves Cambridge, Maryland: 21613. Together they are home to 17,926 residents in 7,790 households. That is more than the 13,152 people counted inside Cambridge city limits, because these ZIP codes reach past its boundary.

Cambridge city limits (Census)

MeasureCensus figure
Residents13,152
Households5,629
Median household income$47,323
Median home value$257,900
Median age39.4
Median rent$1,058

All 1 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)17,926
Households (sum of ZIP codes)7,790
Median household income, range across ZIP codes$53,890 (21613) to $53,890 (21613)
Household-weighted average of ZIP medians (an approximation, not a true median)$53,890
Homeowners51.6%
Households with kids under 1820.6%
Moved in the past year11.4%
Carrier routes in EDDM2GO's route library19 routes, 9,645 homes (1 of 1 ZIP codes)

Every ZIP code in Cambridge

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
21613Cambridge17,9267,790$53,890$283,90051.6%20.6%11.4%1910,3637% of its land; mailing city

A ZIP code is listed for Cambridge when at least 10% of its land lies inside Cambridge city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Cambridge. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Cambridge.

Counties

Price a mailing to Cambridge ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Cambridge, MD?
21613. A ZIP code is listed for Cambridge when at least 10% of its land lies inside Cambridge city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Cambridge.
What is the population of Cambridge, MD?
The Census Bureau counts 13,152 residents inside Cambridge city limits (ACS 2020–2024). The 1 ZIP code that serve Cambridge hold 17,926 residents in all.
What is the median household income in Cambridge, MD?
$47,323 inside Cambridge city limits, per the Census Bureau. Across its ZIP codes the medians run from $53,890 to $53,890.
How many carrier routes and mailboxes are in Cambridge, MD?
For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 19 carrier routes reaching 9,645 residential and 718 business mailboxes.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.