ZIP code · Acton · Massachusetts · United States
ZIP code 01720 — Acton
ZIP code 01720 serves Acton, Massachusetts.
- Postal code
- 01720Single source Value from one source, not cross-checked.
- City
- Acton
- County
- Middlesex FIPS 25017
- State
- Massachusetts
- Country
- United States
- Coordinates
- 42.4751, -71.4483 — precision precise (locality)
View on OpenStreetMap - Population
- 23,322 (ZCTA, ACS 5-year)
- Population density
- 1,189 / sq mi
- Land area
- 19.6 sq mi (50.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $154,101
- Per-capita income
- $75,771
- Median age
- 44.1
- Households
- 8,821
- Housing units
- 8,937
- Median home value
- $766,500
- Median gross rent
- $1,908 / month
- Congressional district
- MA-3 (119th Congress)
- USDA hardiness zone
- 6b (-5 to 0 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
Tools: compare 01720 with another ZIP · ZIPs within 25 miles · distance from 01720
Map of ZIP code 01720
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 15°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 41 | 49 | 62 | 73 | 81 | 87 | 85 | 78 | 66 | 54 | 43 |
| Avg low °F | 15 | 16 | 24 | 34 | 45 | 55 | 60 | 58 | 49 | 38 | 29 | 21 |
| Precip in | 3.6 | 3.3 | 4.6 | 4.4 | 3.7 | 4.2 | 4.0 | 4.4 | 3.9 | 5.1 | 3.8 | 4.8 |
NOAA 1991–2020 climate normals from the nearest station: MAYNARD 2 (3.2 mi) · NOAA NCEI
Places in ZIP 01720
- 4 schools
- 1 hospitals & clinics
- 7 doctors & dentists
- 3 pharmacies
- 6 supermarkets
- 34 restaurants & cafés
- 13 parks
- 18 playgrounds
- 10 gyms & sports centres
- 2 libraries
- 3 post offices
- 12 places of worship
- 9 banks
- 9 gas stations
- 7 EV charging stations
- 5 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page