Williston is a community in Caroline County, Maryland, home to about 391 people across 0.3 square miles. It has no ZIP code of its own: it’s part of 21629.
Homes sold for a median of $188 per square foot in the three months ending August 2026, a balanced market.
Population3911,504 per sq mi
Median home value$532,700Census, as estimated by owners
Price per sq ft$188Sold homes, 3 months to August 2026
Each card is that ZIP code’s whole market, including any part outside Williston. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The Williston guide is on the way
We’re writing up Williston’s story and what everyday life there is like, for people thinking about moving in.
History
What it’s like to live there
Getting around
Things to do
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Around Williston
Distances
Nearest major airport
Baltimore/Washington International Thurgood Marshall Airport (BWI)50 miles away
Closer regional airport
Dover Civil Air Terminal/Dover Air Force Base (DOV)27 miles away
Nearest city of 250,000+
Baltimore, MD51 miles away
Nearest city of 1 million+
Philadelphia, PA88 miles away
Straight-line distances from the center of Williston; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Williston
U.S. Representative · Maryland’s 1st DistrictAndy Harris (R)
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
Williston had 153 residents in the 2020 census, down 1% since 2010.
It’s the 397th largest of 527 towns in Maryland by population.
Caroline County grew from 16,248 residents in 1900 to 33,293 in 2020.
Caroline County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 87°F in summer, and winter lows average 25°F. About 46.3 inches of rain and melted snow fall in a typical year, with about 13 inches of snow.
Source: NOAA 1991–2020 climate normals, Greenwood 2ne, DE weather station (14 miles away).
Jobs in Caroline County
6,996 jobs at 634 businesses in Caroline County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
87 doctors and other health care providers list an office in Williston.
Nearest hospitals
University of Md Shore Medical Center at EastonGeneral hospital · emergency room · CMS rating 4 of 5 · Easton14.3 miles
Tidalhealth Nanticoke, INC.General hospital · emergency room · CMS rating 3 of 5 · Seaford19.5 miles
Bayhealth Hospital, Sussex CampusGeneral hospital · emergency room · CMS rating 3 of 5 · Milford22.2 miles
Providers with an office here
Primary care doctors
14
Specialist doctors
3
Dentists
10
Nurse practitioners and physician assistants
27
Mental health providers
18
Physical and occupational therapists
12
Optometrists
2
Chiropractors
1
Pharmacies
5
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Places in and around Williston
Parks (3 nearby)
Martinak State Park · 163 acres0.2 mi
Sharp Road Community Park · 20 acres1.0 mi
Denton Elementary School Park · 9 acres0.7 mi
Grocery stores (1 nearby)
Food Lion1.0 mi
Pharmacies
Walgreens1.2 mi
Walmart Pharmacy1.3 mi
Libraries
Caroline Public Library1.9 mi
Museums
Museum of Rural Life1.9 mi
Theaters and performance venues (1 nearby)
Amphitheater Shelter0.2 mi
Counts are within about 1 mile of the center of town.
Public schools here are run by Caroline County Public Schools. Check each district’s attendance zones for a specific address.
Public schools(2)
School
Grades
Students
Type
Distance
Denton Elementary SchoolDenton
Pre-K–5
596
Public
0.8 mi
Lockerman Middle SchoolDenton
6–8
827
Public
2.2 mi
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.