My mapAll 546 citiesCities by stateCompare two citiesSee all: CitiesAll placesNational parksState parksZoos and aquariumsSee all: PlacesBest places to liveBest places to retireFor young professionalsSee all: RankingsCost of living calculatorTwin city finderWhere your salary goes furthestSee all: Tools and gamesSign in

Lowell population

Lowell, Massachusetts had an estimated 119,971 residents on July 1, 2025, the 264th-largest city in the US. That is up 12.6% since the 2010 Census and up 14.2% since 2000.

LowellMassachusettsPop. 119,971
Population, July 2025
119,971+3.8% since April 2020
People per sq mile
8,81513.6 sq mi of land
Median age
35.612.6% are 65 or older
Households with kids
32.1%with anyone under 18

Population by year, 2000 to 2025

80k90k100k110k120k2000: 105,04620002001: 105,4492002: 105,00320022003: 104,5652004: 104,09820042005: 103,6682006: 103,67320062007: 104,0192008: 104,88720082009: 106,0242010: 106,51920102011: 107,7942012: 108,83220122013: 109,7992014: 110,58520142015: 111,2052016: 111,30820162017: 111,8172018: 111,40720182019: 111,0132020: 115,59620202021: 117,8742022: 118,35620222023: 118,8572024: 120,09520242025: 119,9712025
Darker bars are the April 2000, 2010 and 2020 benchmarks; the rest are July 1 estimates. Source: US Census Bureau population estimates (intercensal 2000-2010, Vintage 2020 and Vintage 2025).
YearPopulationChangeBasis
2025119,971-124Estimate, July 1
2024120,095+1,238Estimate, July 1
2023118,857+501Estimate, July 1
2022118,356+482Estimate, July 1
2021117,874+2,278Estimate, July 1
2020115,596+4,583April 2020 estimates base
2019111,013-394Estimate, July 1
2018111,407-410Estimate, July 1
2017111,817+509Estimate, July 1
2016111,308+103Estimate, July 1
2015111,205+620Estimate, July 1
2014110,585+786Estimate, July 1
2013109,799+967Estimate, July 1
2012108,832+1,038Estimate, July 1
2011107,794+1,275Estimate, July 1
2010106,519+4952010 Census (April 1)
2009106,024+1,137Estimate, July 1
2008104,887+868Estimate, July 1
2007104,019+346Estimate, July 1
2006103,673+5Estimate, July 1
2005103,668-430Estimate, July 1
2004104,098-467Estimate, July 1
2003104,565-438Estimate, July 1
2002105,003-446Estimate, July 1
2001105,449+403Estimate, July 1
2000105,046April 2000 estimates base

Year-to-year changes across 2010 and 2020 mix census counts with estimates, so small jumps at those years are partly method changes.

Frequently asked questions

What is the population of Lowell in 2025?

The Census Bureau estimates Lowell had 119,971 residents on July 1, 2025, making it the 264th-largest city in the US.

Is Lowell growing?

Yes. Lowell has grown 12.6% since the 2010 Census (106,519 people), and grown 3.8% since 2020.

What was the population of Lowell in 2000?

About 105,046 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 106,519.

How dense is Lowell?

Lowell has about 8,815 people per square mile of land (13.6 square miles).

More about Lowell

See cost of living, jobs and commutes in Lowell, Lowell weather by month, or every Lowell ZIP code. For the biggest cities in the country, see the largest US cities.