Residential delivery area · Delaware
ZIP Code 19973: Seaford, DE
ZIP code 19973 uses the postal name Seaford, Delaware and lies mostly in Sussex County (93% of its land) with the rest in Dorchester County (Census 2020 ZIP-county file). About 27,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,387 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Seaford (6%), Blades (under 1%) and Galestown (under 1%); 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Seaford · its only residential ZIP
- County
- Sussex County (93%); Dorchester County (7%)
- Census places
- Seaford (6%); Blades (under 1%); Galestown (under 1%)
- Neighborhoods
- Beaver Dam Heights, Mobile Gardens Mobile Home Park GeoNames
- Micro area
- Seaford, DE
- House districts
- DE at large (93%), MD-1 (7%) 119th Congress, by share of land
- State
- Delaware
- Time zone
- Eastern
- Land area
- 84.0 sq mi · 319 people per sq mi
Where is ZIP code 19973?
19973 centers on 38.634°, -75.624° and covers 84.0 square miles of land plus 2.0 of water. It borders 6 ZIP codes: 19931, 19933, 19956, 21659, 21632, 19947.
The map draws ZIP code areas only. For the streets inside 19973, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 19973 compare with the rest of Sussex County?
| Measure | 19973 | In Sussex County | In DE |
|---|---|---|---|
| People (ACS 2020-2024) | 26,834 | 3rd of 23 | 14th of 68 |
| Median household income | $64k | 18th of 19 | 43rd of 48 |
| Median home value | $278k | 16th of 21 | 38th of 50 |
Its median household income is higher than in 37% of U.S. residential ZIP codes, and it is denser than 68% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 19973?
The 2020 Census counted 25,550 people in 19973; the ACS, which samples households over 2020-2024, estimates 26,834. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 26,834
- 2020 Census count
- 25,550
- Households
- 10,266
- Median age
- 41.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 19973?
Of the 26,834 people the ACS estimates in 19973, 23.5% are under 18 and 20.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (59.7%), then Black (not Hispanic) (16.7%).
- Under 1823.5%
- 18 to 6456.4%
- 65 and older20.1%
- White, not Hispanic59.7%
- Black, not Hispanic16.7%
- Hispanic or Latino11.9%
- Other or two or more11.1%
- Asian, not Hispanic0.7%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 19973 earn?
Median household income is $64,387 (ACS 2020-2024), the 18th highest of the 19 ranked ZIP codes in Sussex County.
- Median household income
- $64,387±$7,347
- Income per person
- $34,061
- Below the poverty line
- 16.7%
- Unemployed (of the labor force)
- 8.9%
- Adults 25+ with a bachelor's degree
- 17.5%
- Adjusted gross income per tax return, 2022
- $59,94012,730 returns; wages 66% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 19973?
FHFA's house price index for 19973, built from repeat sales and appraisals of the same homes, rose 93% from 2015 to 2025 and rose 66% from 2020 to 2025, and moved +10.5% in 2025.
- Median home value (owners' estimate)
- $278,300
- Median gross rent
- $1,135
- Homes owned by their occupants
- 72.3%
- Housing units
- 11,141
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 19973?
608 business establishments had a location in this ZIP code in 2023, 22 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade98
- Health care and social assistance85
- Other services (except public administration)65
- Construction51
- Accommodation and food services51
- Administrative and support and waste management and remediation services38
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 19973?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 19931 | Bethel | 375 | $99k | 4.6 mi |
| 19933 | Bridgeville | 10,597 | $61k | 6.9 mi |
| 19956 | Laurel | 16,327 | $66k | 7.6 mi |
| 21659 | Rhodesdale, MD | 1,601 | $74k | 10.4 mi |
| 21632 | Federalsburg, MD | 6,436 | $61k | 10.5 mi |
| 19947 | Georgetown | 20,760 | $71k | 12.1 mi |
| 21861 | Sharptown, MD | 920 | $86k | 8.8 mi (near) |
| 19940 | Delmar | 7,540 | $65k | 11.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.