Sussex County Population

1790–2026

148.68K

2026 projection

3.3% since 2020 (increase)

050K100K150K200K18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Sussex County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026148,681+6180.42%
2025148,063+6180.42%
2024147,445+1,1170.76%
2023146,328+6600.45%
2022145,668-380.03%
2021145,706+1,8291.27%
2020143,877+3,1672.25%
2019140,710-2850.20%
2018140,995-2720.19%
2017141,267-7370.52%

Showing 10 of 38 years.

Sussex County Demographics

43.8median age

Median age

Female45.1 yrs
Male42.8 yrs

Adults

117,388
27,656 seniors (65+) · 24% of adults89,732 other adults

Sex

Female 49.6% · 72,333Male 50.4% · 73,474

Population by age

MaleFemale85+ years, male: 98885+ years, female: 1,48880–84 years, male: 1,26480–84 years, female: 1,56375–79 years, male: 2,33275–79 years, female: 2,70570–74 years, male: 3,69870–74 years, female: 3,76365–69 years, male: 4,81465–69 years, female: 5,04160–64 years, male: 5,73760–64 years, female: 5,42255–59 years, male: 6,17455–59 years, female: 6,42050–54 years, male: 5,40250–54 years, female: 5,42845–49 years, male: 4,47245–49 years, female: 4,45840–44 years, male: 4,35940–44 years, female: 4,31835–39 years, male: 4,98735–39 years, female: 4,51530–34 years, male: 4,56030–34 years, female: 4,24025–29 years, male: 4,18025–29 years, female: 3,94920–24 years, male: 4,16720–24 years, female: 3,80915–19 years, male: 4,56215–19 years, female: 4,23110–14 years, male: 4,15710–14 years, female: 3,9055–9 years, male: 3,8885–9 years, female: 3,8110–4 years, male: 3,7330–4 years, female: 3,26785+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 1,458 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Sussex County Income

$116,186median household income

Median household income

$116,186

Half of households earn more, half earn less

Median earnings

$69,308

Typical yearly pay for a worker 25 or older.

Poverty rate

5.5%

About 1 in 18 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Sussex County Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%56%53%
Never married29%32%27%
Divorced10%9%12%
Widowed5%2%8%
Separated1%1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year