ZIP code · Middle Haddam · Connecticut · United States
ZIP code 06456 — Middle Haddam
ZIP code 06456 serves Middle Haddam, Connecticut.
- Postal code
- 06456Single source Value from one source, not cross-checked.
- City
- Middle Haddam
- County
- Lower Connecticut River Valley FIPS 09007
- State
- Connecticut
- Country
- United States
- Coordinates
- 41.5540, -72.5501 — precision precise (locality)
View on OpenStreetMap - Population
- 253 (ZCTA, ACS 5-year)
- Population density
- 190 / sq mi
- Land area
- 1.3 sq mi (3.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $125,350
- Per-capita income
- $96,497
- Median age
- 60.1
- Households
- 155
- Housing units
- 162
- Median home value
- $428,800
- 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 06456 with another ZIP · ZIPs within 25 miles · distance from 06456
Map of ZIP code 06456
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 20°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 40 | 48 | 60 | 71 | 80 | 85 | 83 | 76 | 64 | 52 | 42 |
| Avg low °F | 20 | 22 | 30 | 40 | 50 | 60 | 66 | 64 | 56 | 44 | 35 | 26 |
| Precip in | 2.9 | 2.6 | 3.5 | 3.8 | 3.4 | 3.9 | 3.9 | 3.5 | 4.0 | 4.2 | 3.4 | 3.8 |
NOAA 1991–2020 climate normals from the nearest station: HARTFORD BRAINARD FLD (13.6 mi) · NOAA NCEI
Places in ZIP 06456
- 1 restaurants & cafés
- 1 parks
- 1 libraries
- 2 post offices
- 1 places of worship
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