Browse / United States / Massachusetts / Dedham
Dedham
MassachusettsCDP
Dedham
Total population
25,237

Founded
1635
Air quality index
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
City facts
Facts from Wikidata (CC0).
Overview
Dedham is a town in, and the county seat of, Norfolk County, Massachusetts, United States. Located on Boston's southwestern border, the population was 25,364 at the 2020 census.
Read more on WikipediaHistory & geography
History
Settled in 1635 by people from Roxbury and Watertown, Dedham was incorporated in 1636. It became the county seat of Norfolk County when the county was formed from parts of Suffolk County on March 26, 1793. When the Town was originally incorporated, the residents wanted to name it "Contentment." The Massachusetts General Court overruled them and named the town after Dedham, Essex in England, where some of the original inhabitants were born. The boundaries of the town at the time stretched to the Rhode Island border. At the first public meeting on August 15, 1636, eighteen men signed the town covenant. They swore that they would "in the fear and reverence of our Almighty God, mutually and severally promise amongst ourselves and each to profess and practice one truth according to that most perfect rule, the foundation whereof is ever lasting love." They also agreed that "we shall by all means labor to keep off from us all such as are contrary minded, and receive only such unto us as may be probably of one heart with us, [and such] as that we either know or may well and truly be informed to walk in a peaceable conversation with all meekness of spirit, [this] for the edification of each other in the knowledge and faith of the Lord Jesus…" The covenant also stipulated that if differences were to arise between townsmen, they would seek arbitration for resolution and each would pay his fair share for the common good. Dedham is home to the Fairbanks House, the oldest surviving timber-frame house in the United States, scientifically dated to 1637. On January 1, 1643, by unanimous vote, Dedham authorized the first taxpayer-funded public school, "the seed of American education." Its first schoolmaster, Rev. Ralph Wheelock, a Clare College graduate, was paid 20 pounds…
Geography
Dedham is located at (42.244609, −71.165531). is now a peninsula at 91 Common Street. **Highland Street, near Lowder Street, runs up Earwicker's Hill. * Ashcroft is the neighborhood between Cedar Street and Sprague Street. It includes Paul Park and the Capen School. **The undeveloped strip of land between Beech Street and Turner Street is known as Ogden's Woods. * Fairbanks is the neighborhood between East Street and Wigwam Pond.
Excerpted from the corresponding Wikipedia article (CC BY-SA).
Demographics & economy
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
10-year averages from ERA5 reanalysis (Open-Meteo).
Current forecast
Forecast for Dedham, MA from NOAA NWS API.
Air quality
Current readings from Open-Meteo Air Quality API (Copernicus CAMS European reanalysis).
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Most-observed species
- Turdus migratorius Linnaeus, 1766Turdus migratorius Linnaeus, 1766 · Aves126,874
- Cyanocitta cristata (Linnaeus, 1758)Cyanocitta cristata (Linnaeus, 1758) · Aves117,825
- Cardinalis cardinalis (Linnaeus, 1758)Cardinalis cardinalis (Linnaeus, 1758) · Aves105,392
- Passer domesticus (Linnaeus, 1758)Passer domesticus (Linnaeus, 1758) · Aves97,299
- Zenaida macroura (Linnaeus, 1758)Zenaida macroura (Linnaeus, 1758) · Aves95,290
- Poecile atricapillus (Linnaeus, 1766)Poecile atricapillus (Linnaeus, 1766) · Aves92,502
- Melospiza melodia (A.Wilson, 1810)Melospiza melodia (A.Wilson, 1810) · Aves89,561
- Dryobates pubescens (Linnaeus, 1766)Dryobates pubescens (Linnaeus, 1766) · Aves79,458
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
Largest nearby schools
- TEC Connections Academy Commonwealth Virtual SchoolOther · East Walpole · 2,940 students · 24.7:1 ratio
- Brookline HighHigh · Brookline · 2,087 students · 10.7:1 ratio
- Braintree HighHigh · Braintree · 1,706 students · 15.4:1 ratio
- Needham HighHigh · Needham · 1,645 students · 12.6:1 ratio
- Quincy HighHigh · Quincy · 1,495 students · 13:1 ratio
- North Quincy HighHigh · Quincy · 1,476 students · 15.7:1 ratio
- Wellesley Sr HighHigh · Wellesley · 1,412 students · 12.2:1 ratio
- Sharon HighHigh · Sharon · 1,143 students · 11.4:1 ratio
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
Earthquake history
Most recent
- M 3.6 — 2020-11-0810 km S of Bliss Corner, Massachusetts
- M 2.7 — 2018-02-150 km SE of East Kingston, New Hampshire
- M 2.6 — 2015-01-132 km E of Wauregan, Connecticut
- M 3.3 — 2015-01-120 km NE of Wauregan, Connecticut
- M 2.5 — 2007-10-192 km WSW of Littleton Common, Massachusetts
- M 2.5 — 2005-11-174 km S of Plymouth, Massachusetts
Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).
Photos

Shuttleworth house
Sacco and Vanzetti trial memorial 2
Sacco and Vanzetti trial memorial 1
Henry B. Endicott’s grave
Thomas Sherwin’s grave
Abner Ellis’ grave
Detail of Thomas Sherwin’s grave
Frederic Jesup Stimson’s grave
Monument to soldiers who died at Camp Meigs
Shuttleworth grave
Gravestone of Eleazer Lusher
Gravestone of Jason Fairbanks
Geo-tagged photos from Wikimedia Commons (CC-licensed; click any photo for license details).
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 Massachusetts
Geography & sun
Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.
Nearby airports
Public attention
Pageview totals from the Wikimedia Pageviews API.
Books about Dedham






Search results from Open Library.
Recent natural events nearby
Ground air-quality sensors
Recently spotted species









Research-grade observations from iNaturalist (within ~15 mi).
Nearest stream gauge
Events
Gallery
Geotagged photos within ~6 miles of Dedham, from Wikimedia Commons contributors.
0.2 mi
0.3 miPhotos via Wikimedia Commons — see each image page for license & attribution.
Sources
- • Wikipedia
- • Open-Meteo (ERA5 reanalysis)
- • NOAA National Weather Service
- • Wikimedia Commons
- • Wikidata
- • Open-Meteo Air Quality (CAMS)
- • USGS Earthquake Catalog (global feed)
- • NCES via Urban Institute Education Data Portal
- • GBIF (Global Biodiversity Information Facility)
- • iNaturalist
- • CDC PLACES
- • Open-Elevation
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library