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Lower Connecticut River Valley Planning Region, Connecticut

Lower Connecticut River Valley Planning Region profile, demographic data, and geographic information.

Lower Connecticut River Valley Planning Region is a county located in Connecticut, United States of America. As of official census estimates, it has a reported population of 177,311. The land area covers 424.12 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 177,311 — 2025 / Census
Median Age 45.9 yrs ±0.2 2020-2024 / Census ACS 5-Year 2024
Total Households 74,068 ±693 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 82,963 ±174
Occupied Housing Units 74,068 ±693
Vacant Housing Units 8,895 ±620
Median Home Value $379,700 ±$6,838
Median Gross Rent $1,454 ±$44
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $104,428 ±$2,975
Per Capita Income $59,075 ±$1,629
Poverty Rate 6.8% ±0.6%
Population Below Poverty Level 11,528 ±1,013
Unemployment Rate 3.8% ±0.6%
Civilian Labor Force, Employed 93,983 ±1,062
Broadband Internet Rate 92.5% ±0.8%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at MERIDEN MARKHAM MUNI AP, CT US, located 18.4 miles from Lower Connecticut River Valley Planning Region. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 37.0° 18.7° 27.9° 3.05" —
February 39.1° 20.2° 29.7° 2.93" —
March 47.5° 28.2° 37.8° 4.05" —
April 59.9° 37.8° 48.8° 4.13" —
May 70.4° 47.8° 59.1° 3.48" —
June 78.7° 57.0° 67.9° 4.05" —
July 84.0° 62.5° 73.3° 3.38" —
August 82.4° 61.1° 71.7° 3.54" —
September 75.4° 53.6° 64.5° 4.28" —
October 63.6° 41.8° 52.7° 4.49" —
November 52.0° 32.1° 42.0° 3.36" —
December 41.7° 24.5° 33.1° 4.12" —
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 09130. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.