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Wilmington

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Wilmington

Total population

73,173

Median home value

$245,100

31.8%

Bachelor's+

Median income

$65,389

Wilmington$65k
National$74k

Air quality index

64Moderate
Weather47°F · Chance Rain Showers
Coordinates39.74°, -75.53°

Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.

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City facts

Overview

Wilmington is the most populous city in the U.S. state of Delaware. It lies at the confluence of the Christina River and Brandywine Creek, near where the Christina flows into the Delaware River. The population was 70,898 at the 2020 census. It is the county seat of New Castle County and one of the major cities in the Philadelphia metropolitan area.

Read more on Wikipedia

History & geography

History

Wilmington is built on the site of the settlement Kristinehamn, which was planned by to be the capital of the colony of New Sweden, and Fort Christina, the first Swedish settlement in North America. The modern city also encompasses other Swedish settlements, such as Timmerön / Timber Island (along Brandywine Creek), Sidoland (South Wilmington), Strandviken (along the Delaware River near Simonds Gardens) and Översidolandet (along the Christina River, near Woodcrest and Ashley Heights). The area now known as Wilmington was settled by the Lenape (or Delaware Indian) band led by Sachem (Chief) Mattahorn just before Henry Hudson sailed up the Len-api Hanna (translated as "People Like Me River," now known as the Delaware River) in 1609. The area was called "Maax-waas Unk" or "Bear Place" after the Maax-waas Hanna (Bear River) that flowed by (present Christina River). It was called the Bear River because it flowed west to the "Bear People", who are now known as the People of Conestoga or the Susquehannocks. The Dutch heard and spelled the river and the place as Minguannan. When settlers and traders from the Swedish South Company under Peter Minuit arrived in March 1638 on the Fogel Grip and Kalmar Nyckel, they purchased Maax-waas Unk from Chief Mattahorn and built Fort Christina at the mouth of the Maax-waas Hanna (which the Swedes renamed the Christina River after Queen Christina of Sweden). The area was also known as "The Rocks", and is located near the foot of present-day Seventh Street. Fort Christina served as the headquarters for the colony of New Sweden which consisted of, for the most part, the lower Delaware River region (parts of present-day Delaware, Pennsylvania, and New Jersey), but few colonists settled there. Dr. Timothy Stidham (Swedish:Timen Lulofsson…

Geography

According to the United States Census Bureau, the city has a total area of , of which is land and is water. The total area is 36.25% water. The city sits at the confluence of the Christina and Delaware rivers, approximately southwest of Philadelphia. Wilmington Train Station, one of the southernmost stops on Philadelphia's SEPTA rail transportation system, is also served by Northeast Corridor Amtrak passenger trains. Wilmington is served by I-95 and I-495 within city limits. In addition, the twin-span Delaware Memorial Bridge, a few miles south of the city, provides direct highway access between Delaware and New Jersey, carrying the I-295 eastern bypass route around Wilmington and Philadelphia, as well as US 40, which continues eastward to Atlantic City, New Jersey. These transportation links and geographic proximity give Wilmington some of the characteristics of a satellite city to Philadelphia, but Wilmington's long history as Delaware's principal city, its urban core, and its independent value as a business destination makes it more properly considered a small but independent city in the Philadelphia metropolitan area. Wilmington lies along the Fall Line geological transition from the Mid-Atlantic Piedmont Plateau to the Atlantic Coastal Plain. East of Market Street, and along both sides of the Christina River, the Coastal Plain land is flat, low-lying, and in places marshy. The Delaware River here is an estuary at sea level (with twice-daily high and low tides), providing sea-level access for ocean-going ships. On the western side of Market Street, the Piedmont topography is rocky and hilly, rising to a point that marks the watershed between the Brandywine River and the Christina River. This watershed line runs along Delaware Avenue westward from 10th Street…

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Excerpted from the corresponding Wikipedia article (CC BY-SA).

Demographics & economy

Median age
36.8
Median home value
$245,100
Housing units
35,325
Poverty rate
21.1%
Unemployment
8.5%

Race & ethnicity

White
29.1%
Black
53.6%
Asian
2%
Hispanic
13.8%

Source: US Census Bureau — American Community Survey, 5-year estimates.

Geography

Latitude
39.7357
Longitude
-75.5321
Water area
6.29 mi²
View on OpenStreetMap

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Climate

Avg high
65.1°F
Avg low
48.8°F
Annual precipitation
51.7 in

10-year averages from ERA5 reanalysis (Open-Meteo).

Current forecast

Tonight
47°F
Chance Rain Showers
Saturday
54°F
Chance Rain Showers then Mostly Cloudy
Saturday Night
36°F
Mostly Clear
Sunday
57°F
Sunny
Sunday Night
41°F
Mostly Clear
Monday
60°F
Chance Rain Showers

Forecast for Wilmington, DE from NOAA NWS API.

Air quality

US AQI — Moderate
64
PM2.5 (µg/m³)
7.7
PM10 (µg/m³)
7.9
Ozone (µg/m³)
93
NO₂ (µg/m³)
11.6

Current readings from Open-Meteo Air Quality API (Copernicus CAMS European reanalysis).

Industrial & pollution facilities

Natural hazard risk

Health (adults)

Walkability

Amenities nearby

Wildlife & biodiversity

Observations (last 5 yrs, 10 mi)
1,291,582
Distinct species (top 10)
10

Most-observed species

  • Northern Cardinal
    Cardinalis cardinalis (Linnaeus, 1758) · Aves
    47,000
  • American Robin
    Turdus migratorius Linnaeus, 1766 · Aves
    42,697
  • Carolina Wren
    Thryothorus ludovicianus (Latham, 1790) · Aves
    38,744
  • Blue Jay
    Cyanocitta cristata (Linnaeus, 1758) · Aves
    38,629
  • Song Sparrow
    Melospiza melodia (A.Wilson, 1810) · Aves
    37,457
  • Mourning Dove
    Zenaida macroura (Linnaeus, 1758) · Aves
    37,451
  • Red-bellied Woodpecker
    Melanerpes carolinus (Linnaeus, 1758) · Aves
    32,909
  • House Finch
    Haemorhous mexicanus (P.L.Statius Müller, 1776) · Aves
    31,340

Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).

Schools

Total
82
Elementary
41
Middle
11
High
16
Other
14

Largest nearby schools

  • Penn (William) High School
    High · New Castle · 2,239 students · 18.1:1 ratio
  • Odyssey Charter School
    Other · Wilmington · 2,123 students · 13:1 ratio
  • Delcastle Technical High School
    High · Wilmington · 1,585 students · 12.4:1 ratio
  • Las Americas ASPIRA Academy
    Other · Newark · 1,341 students · 15.2:1 ratio
  • Christiana High School
    High · Newark · 1,256 students · 14.6:1 ratio
  • Conrad Schools of Science
    High · Wilmington · 1,169 students · 18:1 ratio
  • Mount Pleasant High School
    High · Wilmington · 1,107 students · 14.4:1 ratio
  • Dickinson (John) School
    High · Wilmington · 1,058 students · 16.5:1 ratio

Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).

Earthquake history

Quakes ≥ 2.5 (25 yrs, 62 mi)
4
Largest magnitude
4.1
Largest event
2017-11-30

Most recent

Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).

Photos

Sights & places nearby

Notable people from here

People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.

Nearby places in Delaware

Browse all places in Delaware →

Geography & sun

Nearby airports

Public attention

Books about this place

Recent natural events nearby

Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).

Ground air-quality sensors

Recently spotted species

Research-grade observations from iNaturalist (within ~15 mi).

Nearest stream gauge

Site
CHRISTINA RIVER AT WILMINGTON, DE
Distance
0.5 mi
Gage height
3.2 ft
Water temp
25.2 °C

Live readings from USGS NWIS · measured 2026-06-13 20:36 UTC.

Events

Notable, recurring, and historical events associated with Wilmington, sourced from Wikidata.

Source: Wikidata (CC0).

Geotagged photos within ~6 miles of Wilmington, from Wikimedia Commons contributors.

Photos via Wikimedia Commons — see each image page for license & attribution.

Sources

  • • Wikipedia
  • • US Census Bureau (ACS 5-year estimates)
  • • Open-Meteo (ERA5 reanalysis)
  • • NOAA National Weather Service
  • • Wikimedia Commons
  • • Wikidata
  • • Open-Meteo Air Quality (CAMS)
  • • USGS Earthquake Catalog (global feed)
  • • USGS NWIS (water data)
  • • NCES via Urban Institute Education Data Portal
  • • GBIF (Global Biodiversity Information Facility)
  • • iNaturalist
  • • NASA EONET