ZIP code
21912
Warwick, MD
21912 covers Warwick in Cecil County, with 1,430 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 21912. Methodology
ZIP code map of 21912

About ZIP code 21912
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 21912. Not ACS. Methodology
People in 21912
Race
- White1,028
- Black or African American52
- American Indian or Alaska Native6
- Asian9
- Other race104
- Two or more races113
Hispanic or Latino (any race): 214
Age
- Under 10140
- 10 to 19210
- 20 to 29126
- 30 to 39131
- 40 to 49166
- 50 to 59205
- 60 to 69193
- 70 to 7989
- 80 and older52
Income and housing in 21912
Education
- High school graduate98.1%
- Bachelor's degree24.0%
- Graduate degree15.0%
Places covering 21912
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Cecilton1.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Cecil County98.6%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
97.4% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 21912
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 1,090 | |
| 2006 | 1,025 | |
| 2007 | 1,088 | |
| 2008 | 1,053 | |
| 2009 | 1,072 | |
| 2010 | 1,062 | |
| 2011 | 1,428 | 1,144 |
| 2012 | 1,100 | 1,080 |
| 2013 | 1,062 | 1,130 |
| 2014 | 1,406 | 1,110 |
| 2015 | 1,203 | 1,110 |
| 2016 | 1,078 | 1,070 |
| 2017 | 1,110 | 1,100 |
| 2018 | 1,152 | 1,100 |
| 2019 | 1,139 | 1,030 |
| 2020 | 1,520 | 1,040 |
| 2021 | 1,393 | 1,050 |
| 2022 | 1,495 | 1,040 |
| 2023 | 1,430 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 21912
12 nearest ZIP centroids (any distance)
- 21913Cecilton2.8 miPop 863 · Income $95,795
- 21930Georgetown5.0 miPop 30 · Income —
- 21915Chesapeake City5.5 miPop 2,471 · Income $97,794
- 21635Galena6.0 miPop 2,200 · Income $97,194
- 21919Earleville6.1 miPop 3,644 · Income $115,152
- 21650Massey7.5 miPop 98 · Income —
- 19730Odessa8.8 miPop 506 · Income $81,927
- 19709Middletown9.1 miPop 50,542 · Income $129,971
- 19734Townsend9.2 miPop 14,151 · Income $131,745
- 21645Kennedyville10.3 miPop 872 · Income —
- 21651Millington11.5 miPop 2,448 · Income $71,983
- 19938Clayton13.0 miPop 9,867 · Income $96,338
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 21912, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 21912 FAQ
- What city is ZIP code 21912 in?
- 21912 is in Warwick, MD.
- What county is 21912 in?
- 21912 is in Cecil County.
- What is the median household income in 21912?
- The median household income in 21912 is $65,074.
- Does ZIP code 21912 cross state lines?
- Yes. 21912 is listed in MD, DE. This page is the canonical listing for Warwick, MD.
- Which ZIP codes are near 21912?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 21912.