Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Population Count Grid

    Metadata Updated: August 30, 2025

    The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Population Count Grid estimates human population for the years 1990, 1995, and 2000 by 30 arc-second (1 km) grid cells and associated data sets dated circa 2000. A proportional allocation gridding algorithm, utilizing more than 1,000,000 national and sub-national geographic Units, is used to assign population values (counts, in persons) to grid cells. This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN) in collaboration with the International Food Policy Research Institute (IFPRI), The World Bank, and Centro Internacional de Agricultura Tropical (CIAT).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    References

    https://doi.org/10.7927/H4CR5R8J
    https://doi.org/10.7927/H44B2Z74
    https://doi.org/10.7927/H40K26HS
    https://doi.org/10.7927/H4R20Z93
    https://doi.org/10.7927/H4M906KR
    https://doi.org/10.7927/H4GH9FVG

    Dates

    Metadata Created Date December 1, 2022
    Metadata Updated Date August 30, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date August 30, 2025
    Publisher SEDAC
    Maintainer
    Identifier C2210241148-SEDAC
    Data First Published 2011-09-26
    Language en-US
    Data Last Modified 2025-07-17
    Category GRUMP, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id d3d86f1a-bf6d-4aa9-ba98-2555db83077b
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Metadata Type geospatial
    Old Spatial -180.0 -58.0 180.0 85.0
    Program Code 026:001
    Related Documents https://doi.org/10.7927/H4CR5R8J, https://doi.org/10.7927/H44B2Z74, https://doi.org/10.7927/H40K26HS, https://doi.org/10.7927/H4R20Z93, https://doi.org/10.7927/H4M906KR, https://doi.org/10.7927/H4GH9FVG
    Source Datajson Identifier True
    Source Hash 7afdacdd21b75a8d89887a354feca0cb950e4afd59acb71d6ebf6fd9ea28411b
    Source Schema Version 1.1
    Spatial
    Temporal 1990-07-01T00:00:00Z/2000-07-01T00:00:00Z

    Didn't find what you're looking for? Suggest a dataset here.