19975 ZIP Code, Selbyville, DE

19975 is a ZIP code in Selbyville, Delaware in Sussex County. It covers 26 square miles of land. The closest ZIP codes are 21813, 19945 and 21862. 10,862 people live here in 5,085 households. With about 425 people per square mile it is lightly settled, and most homes are owner-occupied (88%). Median household income is $88,568, close to the Delaware median of $84,954; the median age is 59.6, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents10,862
Households5,085
Median household income$88,568
Income per person$60,340
Median age59.6
Homeowners88.2%
Median home value$462,700
Median rent$1,037
Bachelor's degree or higher37.8%
Average commute (minutes)25.8
Households with kids under 1813.6%
Moved in the past year12.2%
Below the poverty line4.4%
Broadband internet93.2%
Speak a non-English language at home12.3%

Household income

% of householdsValue
<$10K2.6%
$10–15K1.6%
$15–25K4.2%
$25–35K5.3%
$35–50K11.6%
$50–75K14.0%
$75–100K15.1%
$100–150K18.7%
$150–200K11.4%
$200K+15.5%

Age

% of all residentsValue
<106.0%
10–196.1%
20–243.7%
25–347.3%
35–447.6%
45–5412.0%
55–6417.5%
65–7424.1%
75+15.7%

Tenure

% of housing unitsValue
Owned, with mortgage27.5%
Owned outright22.5%
Rented6.6%
Vacant43.4%

Type of building

% of housing unitsValue
Detached house65.2%
Townhome17.9%
2–4 units1.2%
5–19 units4.6%
20+ units1.1%
Mobile / other10.0%

Businesses in 19975

276 business establishments with 4,410 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

19975 has 10 USPS carrier routes with 8,125 residential and 288 business mailboxes. Open the EDDM route map.

Carrier routes in 19975

19975 has 10 USPS carrier routes (10 rural (R)) with 8,125 residential and 288 business mailboxes. Routes range from 540 homes (R752) to 1,145 homes (R096); the median route has 774 homes. The Census counted 5,085 households in 19975 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4990
500–7495
750–9993
1,000–1,4992
1,500+0

Best routes in 19975 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R092 — USPS business mailboxes 120, 562 homes
  2. Route R101 — USPS business mailboxes 45, 717 homes
  3. Route R751 — USPS business mailboxes 32, 651 homes
  4. Route R096 — USPS business mailboxes 31, 1,145 homes
  5. Route R094 — USPS business mailboxes 14, 993 homes

Select these 5 routes on the route map

Every carrier route in 19975

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R091Rural83813$121,108———
R092Rural562120$67,712———
R094Rural99314$92,084———
R095Rural1,1315$117,047———
R096Rural1,14531$87,469———
R097Rural81714$75,188———
R098Rural7315$84,127———
R101Rural71745$84,127———
R751Rural65132$117,047———
R752Rural5409$120,641———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 19975 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 19975

Where it ranks

Mail every home in 19975

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 19975, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 19975 in?
19975 is a Selbyville, DE mailing address. By land area, 14% lies inside Selbyville; the rest is outside any Census-defined city or community.
What county is 19975 in?
19975 is in Sussex County.
What is the population of 19975?
About 10,862 people (±681), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 10,476.
What is the median household income in 19975?
$88,568 (±$11,012), compared with $84,954 for Delaware as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 19975?
10 USPS carrier routes with 8,125 residential and 288 business mailboxes (8,414 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 19975?
The closest, measured center to center: 21813 (3.2 mi, Bishopville), 19945 (3.7 mi, Millville), 21862 (5.5 mi), 19967 (5.6 mi, Millville), 19944 (6.4 mi, Fenwick Island) and 19970 (7.1 mi, Ocean View).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.