ZIP code · Charlestown · Massachusetts · United States
ZIP code 02129 — Charlestown
ZIP code 02129 serves Charlestown, Massachusetts.
- Postal code
- 02129Single source Value from one source, not cross-checked.
- City
- Charlestown
- County
- Suffolk FIPS 25025
- State
- Massachusetts
- Country
- United States
- Coordinates
- 42.3778, -71.0627 — precision precise (locality)
View on OpenStreetMap - Population
- 19,994 (ZCTA, ACS 5-year)
- Population density
- 14,753 / sq mi
- Land area
- 1.4 sq mi (3.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $157,192
- Per-capita income
- $97,454
- Median age
- 36
- Households
- 9,389
- Housing units
- 9,987
- Median home value
- $926,000
- Median gross rent
- $2,258 / month
- Congressional district
- MA-7 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °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 02129 with another ZIP · ZIPs within 25 miles · distance from 02129
Map of ZIP code 02129
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 39 | 46 | 56 | 67 | 76 | 82 | 80 | 73 | 62 | 52 | 42 |
| Avg low °F | 23 | 25 | 31 | 41 | 50 | 60 | 66 | 65 | 58 | 48 | 38 | 29 |
| Precip in | 3.4 | 3.2 | 4.2 | 3.6 | 3.3 | 3.9 | 3.3 | 3.2 | 3.6 | 4.0 | 3.7 | 4.3 |
NOAA 1991–2020 climate normals from the nearest station: BOSTON LOGAN INTL AP (2.9 mi) · NOAA NCEI
Places in ZIP 02129
- 5 schools
- 2 colleges & universities
- 2 hospitals & clinics
- 1 doctors & dentists
- 1 pharmacies
- 1 supermarkets
- 23 restaurants & cafés
- 3 bars & pubs
- 31 parks
- 17 playgrounds
- 3 gyms & sports centres
- 3 libraries
- 2 post offices
- 5 places of worship
- 3 banks
- 2 gas stations
- 3 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