Harper Island, Illinois
Harper Island profile, demographic data, and geographic information.
Harper Island is a geographic feature located in Henderson County, Illinois. [1]
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Gulfport village | Village | 1.9 mi | — |
| Burlington city | City | 3.1 mi | — |
| Carman CDP | CDP | 3.3 mi | — |
| Oak Hills CDP | CDP | 4.3 mi | — |
| West Burlington city | City | 5.9 mi | — |
| Lomax village | Village | 7.1 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: USGS Geographic Names Information System (GNIS raw repository). Official feature class and geographic coordinates. • Official Source Dataset →
- 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.
- 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.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.