ZIP code · Oneco · Connecticut · United States
ZIP code 06373 — Oneco
ZIP code 06373 serves Oneco, Connecticut.
- Postal code
- 06373Single source Value from one source, not cross-checked.
- City
- Oneco
- County
- Northeastern Connecticut FIPS 09015
- State
- Connecticut
- Country
- United States
- Coordinates
- 41.6937, -71.8084 — precision precise (locality)
View on OpenStreetMap - Population
- 137 (ZCTA, ACS 5-year)
- Population density
- 74 / sq mi
- Land area
- 1.9 sq mi (4.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $45,556
- Per-capita income
- $24,777
- Median age
- 33.2
- Households
- 54
- Housing units
- 54
- Median home value
- $239,300
- Congressional district
- CT-2 (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 06373 with another ZIP · ZIPs within 25 miles · distance from 06373
Map of ZIP code 06373
Climate — monthly normals
Warmest month Jul (avg high 80°F), coldest Jan (avg low 19°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 38 | 46 | 58 | 68 | 76 | 80 | 79 | 72 | 61 | 50 | 40 |
| Avg low °F | 19 | 20 | 27 | 37 | 47 | 56 | 61 | 60 | 53 | 42 | 33 | 24 |
| Precip in | 4.5 | 3.9 | 5.2 | 4.7 | 3.8 | 4.5 | 3.6 | 4.5 | 4.4 | 5.0 | 4.5 | 5.2 |
NOAA 1991–2020 climate normals from the nearest station: N FOSTER 1 E (11.9 mi) · NOAA NCEI
Places in ZIP 06373
- 1 parks
- 3 playgrounds
- 1 libraries
- 1 post offices
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