Town guide

Delmar, Delaware

Delmar is a town in Sussex County, Delaware, home to about 2,412 people across 1.9 square miles. Its ZIP code is 19940.

Homes sold for a median of $152 per square foot in the three months ending August 2026, a balanced market.

Population2,4121,269 per sq mi
Median home value$232,800Census, as estimated by owners
Price per sq ft$152Sold homes, 3 months to August 2026
Sold over asking50%Latest 3 months

ZIP codes in Delmar

1 ZIP code

Each card is that ZIP code’s whole market, including any part outside Delmar. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology

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We’re writing up Delmar’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 Delmar

Distances

Nearest major airportBaltimore/Washington International Thurgood Marshall Airport (BWI)76 miles away
Closer regional airportSalisbury Ocean City Wicomico Regional Airport (SBY)10 miles away
Nearest city of 250,000+Baltimore, MD80 miles away
Nearest city of 1 million+Philadelphia, PA108 miles away

Straight-line distances from the center of Delmar; driving is longer.

Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.

Who represents Delmar

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

Delmar had 2,027 residents in the 2020 census, up 44% since 2000.

It’s the 38th largest of 79 towns in Delaware by population.

Sussex County grew from 42,276 residents in 1900 to 237,378 in 2020.

Delmar population by census2000: 1,407, 2010: 1,597, 2020: 2,0271,40720001,59720102,0272020

Sussex County, 1900–2020

Sussex County population, 1900 to 20201900: 42,276, 1910: 46,413, 1920: 43,741, 1930: 45,507, 1940: 52,502, 1950: 61,336, 1960: 73,195, 1970: 80,356, 1980: 98,004, 1990: 113,229, 2000: 156,638, 2010: 197,145, 2020: 237,37842K’00’1044K’20’3053K’40’5073K’60’7098K’80’90157K’00’10237K’20

Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).

Weather by month

Average highs peak around 88°F in summer, and winter lows average 29°F. About 49.9 inches of rain and melted snow fall in a typical year.

Average high and low temperature and precipitation by month near DelmarJan: high 47°F, low 29°F, 3.5 in; Feb: high 51°F, low 31°F, 3.1 in; Mar: high 57°F, low 37°F, 4.4 in; Apr: high 69°F, low 45°F, 3.6 in; May: high 77°F, low 55°F, 4 in; Jun: high 84°F, low 64°F, 4.5 in; Jul: high 88°F, low 69°F, 4.7 in; Aug: high 86°F, low 67°F, 5 in; Sep: high 80°F, low 61°F, 5.4 in; Oct: high 70°F, low 50°F, 4.4 in; Nov: high 60°F, low 40°F, 3.4 in; Dec: high 51°F, low 33°F, 3.9 in47°29°Jan3.551°31°Feb3.157°37°Mar4.469°45°Apr3.677°55°May4.084°64°Jun4.588°69°Jul4.786°67°Aug5.080°61°Sep5.470°50°Oct4.460°40°Nov3.451°33°Dec3.9Rain and melted snow, inches

Source: NOAA 1991–2020 climate normals, Salisbury 2n, MD weather station (5 miles away).

Jobs in Sussex County

78,541 jobs at 6,411 businesses in Sussex County. The biggest industries by employees:

Largest industries in Sussex CountyHealth care and social assistance: 13,499 jobs; Retail trade: 13,258 jobs; Hotels and restaurants: 12,369 jobs; Manufacturing: 10,841 jobs; Construction: 5,957 jobs; Administrative and support: 4,822 jobs; Professional services: 3,025 jobs; Other services: 2,837 jobsHealth care and social assistance 17% Retail trade 17% Hotels and restaurants 16% Manufacturing 14% Construction 8% Administrative and support 6% Professional services 4% Other services 4%

Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).

Health care

23 doctors and other health care providers list an office in Delmar.

Nearest hospitals

  • Tidalhealth Peninsula Regional, INCGeneral hospital · emergency room · CMS rating 4 of 5 · Salisbury7.9 miles
  • Tidalhealth Nanticoke, INC.General hospital · emergency room · CMS rating 3 of 5 · Seaford11.5 miles
  • Atlantic General HospitalGeneral hospital · emergency room · CMS rating 3 of 5 · Berlin22.0 miles

Providers with an office here

Primary care doctors1
Specialist doctors1
Nurse practitioners and physician assistants5
Mental health providers10
Physical and occupational therapists5
Chiropractors1
Pharmacies3

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 Delmar

Grocery stores

  • Food Lion1.6 mi
  • ALDI3.9 mi
  • Walmart Supercenter4.1 mi
  • Grocery Outlet4.4 mi

Pharmacies

  • Rite Aid4.9 mi

Libraries

  • Delmar Public Library1.4 mi

Counts are within about 1 mile of the center of town.

Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.

Schools in Delmar

Public schools here are run by Delmar School District. Check each district’s attendance zones for a specific address.

Public schools (3)
SchoolGradesStudentsTypeDistance
Delmar Middle SchoolDelmar5–8732Public1.3 mi
Delmar High SchoolDelmar9–12713Public1.3 mi
Delmar Middle Level ILCDelmarUngraded—Special Education1.4 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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Where Delmar is

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Towns near Delmar

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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.