City in Middlesex County, Massachusetts · 13.6 sq mi · 8,894 people per sq mi
121,049 people live in Lowell. The typical household earns $78,658, and the median resident is 35.6 years old.
2026 projection
From 115,554 in 2020
Poverty rate 16.91%
Men 34.7 · Women 36.4
1830–2026
121.05K
2026 projection
4.8% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1830–2026
121.05K
2026 projection
4.8% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 121,049 | +1,078 | 0.90% |
|---|---|---|---|
| 2025 | 119,971 | -124 | 0.10% |
| 2024 | 120,095 | +1,238 | 1.04% |
| 2023 | 118,857 | +501 | 0.42% |
| 2022 | 118,356 | +482 | 0.41% |
| 2021 | 117,874 | +2,320 | 2.01% |
| 2020 | 115,554 | +350 | 0.30% |
| 2019 | 115,204 | +59 | 0.05% |
| 2018 | 115,145 | +43 | 0.04% |
| 2017 | 115,102 | +962 | 0.84% |
Showing 10 of 35 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
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
Each square is about 1% of residents (roughly 1,184 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
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 6 residents
37% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 37% | 38% | 35% |
| Never married | 46% | 49% | 43% |
| Divorced | 11% | 9% | 13% |
| Widowed | 4% | 2% | 6% |
| Separated | 2% | 2% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources