ZIP code
21660
Ridgely, MD
21660 covers Ridgely in Caroline County, with 4,244 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 21660. Methodology
ZIP code map of 21660
About ZIP code 21660
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 21660. Not ACS. Methodology
People in 21660
Race
- White2,977
- Black or African American528
- American Indian or Alaska Native6
- Asian40
- Native Hawaiian and Pacific Islander2
- Other race125
- Two or more races249
Hispanic or Latino (any race): 248
Age
- Under 10479
- 10 to 19514
- 20 to 29399
- 30 to 39501
- 40 to 49504
- 50 to 59590
- 60 to 69523
- 70 to 79290
- 80 and older127
Income and housing in 21660
Education
- High school graduate87.8%
- Bachelor's degree17.3%
- Graduate degree6.2%
Places covering 21660
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.
- Ridgely41.0%
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.
- Caroline 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
59.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 21660
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 3,612 | |
| 2006 | 3,557 | |
| 2007 | 3,713 | |
| 2008 | 3,516 | |
| 2009 | 3,466 | |
| 2010 | 3,635 | |
| 2011 | 4,045 | 3,654 |
| 2012 | 4,108 | 3,530 |
| 2013 | 4,449 | 3,650 |
| 2014 | 4,198 | 3,580 |
| 2015 | 4,054 | 3,740 |
| 2016 | 3,948 | 3,660 |
| 2017 | 3,913 | 3,640 |
| 2018 | 3,881 | 3,700 |
| 2019 | 4,292 | 3,680 |
| 2020 | 4,361 | 3,690 |
| 2021 | 3,942 | 3,630 |
| 2022 | 4,100 | 3,730 |
| 2023 | 4,244 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 21660
12 nearest ZIP centroids (any distance)
- 21641Hillsboro3.9 miPop 130 · Income $65,417
- 21657Queen Anne5.1 miPop 1,533 · Income $106,588
- 21639Greensboro5.7 miPop 4,621 · Income $59,274
- 21636Goldsboro6.4 miPop 913 · Income $66,818
- 21629Denton7.6 miPop 10,285 · Income $70,117
- 21625Cordova8.1 miPop 1,837 · Income $93,589
- 21640Henderson8.6 miPop 1,251 · Income $65,952
- 21617Centreville10.5 miPop 10,614 · Income $117,668
- 21644Ingleside11.2 miPop 82 · Income —
- 21679Wye Mills11.3 miPop 332 · Income $116,908
- 21623Church Hill12.3 miPop 2,482 · Income $77,014
- 21607Barclay12.4 miPop 538 · Income $88,702
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 21660, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 21660 FAQ
- What city is ZIP code 21660 in?
- 21660 is in Ridgely, MD.
- What county is 21660 in?
- 21660 is in Caroline County.
- What is the median household income in 21660?
- The median household income in 21660 is $76,917.
- Which ZIP codes are near 21660?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 21660.