ZIP code
21918
Conowingo, MD
21918 covers Conowingo in Cecil County, with 4,125 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 21918. Methodology
ZIP code map of 21918
About ZIP code 21918
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 21918. Not ACS. Methodology
People in 21918
Race
- White3,867
- Black or African American43
- American Indian or Alaska Native17
- Asian35
- Native Hawaiian and Pacific Islander2
- Other race53
- Two or more races252
Hispanic or Latino (any race): 128
Age
- Under 10433
- 10 to 19539
- 20 to 29489
- 30 to 39426
- 40 to 49492
- 50 to 59721
- 60 to 69671
- 70 to 79361
- 80 and older137
Income and housing in 21918
Education
- High school graduate90.4%
- Bachelor's degree14.5%
- Graduate degree9.4%
Places covering 21918
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.
No place overlap rows for this ZIP.
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 County100.0%
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
100.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 21918
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 4,206 | |
| 2006 | 4,108 | |
| 2007 | 4,246 | |
| 2008 | 4,018 | |
| 2009 | 3,965 | |
| 2010 | 4,060 | |
| 2011 | 4,633 | 4,047 |
| 2012 | 4,253 | 3,980 |
| 2013 | 4,157 | 3,980 |
| 2014 | 4,021 | 3,910 |
| 2015 | 3,735 | 3,910 |
| 2016 | 3,920 | 3,820 |
| 2017 | 3,737 | 3,870 |
| 2018 | 3,853 | 3,790 |
| 2019 | 3,692 | 3,810 |
| 2020 | 4,321 | 3,800 |
| 2021 | 4,428 | 3,760 |
| 2022 | 4,462 | 3,770 |
| 2023 | 4,125 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 21918
12 nearest ZIP centroids (any distance)
- 21034Darlington3.6 miPop 2,802 · Income $77,063
- 21917Colora4.2 miPop 1,786 · Income $104,583
- 17563Peach Bottom5.8 miPop 3,806 · Income $86,369
- 21160Whiteford7.1 miPop 2,543 · Income $102,188
- 21904Port Deposit7.2 miPop 6,401 · Income $84,375
- 19362Nottingham7.5 miPop 6,181 · Income $87,292
- 21911Rising Sun7.7 miPop 10,402 · Income $100,401
- 21078Havre De Grace8.4 miPop 20,002 · Income $109,451
- 21028Churchville8.7 miPop 2,872 · Income $133,583
- 17314Delta9.4 miPop 6,431 · Income $91,176
- 17518Drumore9.9 miPop 1,371 · Income $59,352
- 21154Street9.9 miPop 7,187 · Income $100,583
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 21918, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 21918 FAQ
- What city is ZIP code 21918 in?
- 21918 is in Conowingo, MD.
- What county is 21918 in?
- 21918 is in Cecil County.
- What is the median household income in 21918?
- The median household income in 21918 is $81,026.
- Which ZIP codes are near 21918?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 21918.