Postal labels for ZIP 21401
- Annapolis, MD · Source county label: Anne Arundel
These are sourced postal labels, not USPS validation or a statement that every address is residential. Census ZIP Business Patterns and GeoNames can retain multiple names for one code.
Continue with Maryland internet research.
What the local source records show
Annapolis city is only one of five named-place intersections for ZCTA 21401; the others include Annapolis Neck, Crownsville, Naval Academy and Parole. All are within the Anne Arundel County context in this source. Maryland's county buildout-completion map does not make the selected Annapolis city report a report for all five places.
Local crosswalk reviewed ; state resource checked .
The geography vintage is 2020. The public source records support this geographic interpretation; they do not confirm service at a household.
2020 Census boundaries for ZCTA 21401
This statistical area has positive-land intersections with 1 county-equivalent and 5 named Census places. Its state identifiers are MD.
County intersections
- Anne Arundel County (Census 24003)
Named-place intersections
- Annapolis city (Census 2401600)
- Annapolis Neck CDP (Census 2401635)
- Crownsville CDP (Census 2421075)
- Naval Academy CDP (Census 2455050)
- Parole CDP (Census 2460325)
A ZCTA is not a current postal route or a provider service area. Even a tiny land intersection counts; these relationships do not measure households, network coverage or the share of this ZIP that can order a plan.
Read this prefix's boundary data · Study definitions and method · Download the national study CSV
How do I compare a fiber upgrade in Annapolis?
Confirm the street address and unit, the eligible connection, current Broadband Facts label, complete bill and installation options. Compare the connection that reaches your home, upload needs and in-home Wi-Fi before choosing a faster tier. Calling or sending an inquiry does not place an order. Use the fiber upgrade checklist.
(336) 420-9379 · Every day, 9 AM–9 PM Eastern
Search another ZIP · Compare two written quotes · Read a Broadband Facts label
Other reviewed ZIP guides nearby
Up to three reviewed guides within 100 miles, measured as approximate straight-line, great-circle distances between 2026 Census ZCTA internal representative points. These points are not city centers or service addresses. Distance is not driving distance and does not identify provider coverage or a shared service area.
- Dover, DE · ZIP 19901 about 59 miles between representative points
- Harrisburg, PA · ZIP 17101 about 90 miles between representative points
Each link opens its own reviewed research guide. Confirm the actual address separately.
Sources and limitations
- www.census.gov/data/datasets/2023/econ/cbp/2023-cbp.html
- www.geonames.org/
- www.census.gov/programs-surveys/geography/guidance/geo-areas/zctas.html
- www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_county20_natl.txt
- www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_place20_natl.txt
- broadbandmap.fcc.gov/data-download/nationwide-data
- dhcd.maryland.gov/infrastructure/internet-access/infrastructure-buildout
Postal labels combine 2023 Census ZIP Business Patterns and GeoNames, with casing normalized by Tarheel Connect. GeoNames data is used under CC BY 4.0. Boundaries are positive-land intersections from the 2020 Census relationship files. FCC company reports concern the entire named geography and are separate from live provider eligibility. No household addresses or customer records are included.
