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San Sebastián Municipio, Puerto Rico

San Sebastián Municipio profile, demographic data, and geographic information.

San Sebastián Municipio is a county located in Puerto Rico, United States of America. As of official census estimates, it has a reported population of 39,088. The land area covers 70.47 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 39,088 — 2020-2024 / Census ACS 5-Year 2024
Median Age 47 yrs ±0.3 2020-2024 / Census ACS 5-Year 2024
Total Households 14,605 ±698 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 19,193 ±561
Occupied Housing Units 14,605 ±698
Vacant Housing Units 4,588 ±511
Median Home Value $115,000 ±$8,204
Median Gross Rent $508 ±$36
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $19,920 ±$1,708
Per Capita Income $12,443 ±$802
Poverty Rate 49.7% ±4.5%
Population Below Poverty Level 19,307 ±1,762
Unemployment Rate 13% ±2.6%
Civilian Labor Force, Employed 11,216 ±716
Broadband Internet Rate 73.1% ±3.1%
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 ISABELA SUBSTN, PR RQ, located 10.8 miles from San Sebastián Municipio. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 81.0° 66.7° 73.9° 3.74" 0.0"
February 81.2° 66.7° 74.0° 2.50" 0.0"
March 82.5° 67.2° 74.8° 3.86" 0.0"
April 83.3° 68.6° 76.0° 4.93" 0.0"
May 84.7° 70.7° 77.7° 7.20" 0.0"
June 86.0° 72.1° 79.1° 5.55" 0.0"
July 86.2° 72.5° 79.4° 5.04" 0.0"
August 86.7° 73.1° 79.9° 6.73" 0.0"
September 87.1° 72.6° 79.8° 6.73" 0.0"
October 86.1° 71.9° 79.0° 6.97" 0.0"
November 83.8° 70.6° 77.2° 6.40" 0.0"
December 81.8° 68.8° 75.3° 4.41" 0.0"
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: 72131. • 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.