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Africapolis Urban Agglomerations (OECD/SWAC) vs GRID3 Nigeria Settlement Extents v4.0

A verified, side-by-side comparison. Both records are status-checked by Wycord, so you are comparing what each actually offers today, not a stale listing.

Africapolis Urban Agglomerations (OECD/SWAC)GRID3 Nigeria Settlement Extents v4.0
Category
Datasets
Datasets
Type
Geographic
Geographic
Country
🌍 Pan-African
🇳🇬 Nigeria
Docs status
Docs live
Docs live
Licensing
Pricing
Free / open
Free / CC-BY-SA 4.0
Verified
Unverified
Verified
Last verified
5 Jul 2026
24 Jun 2026
Tags
boundaries, population, cities, geospatial, urbanization
geopackage, settlements, grid3, building-footprints, ciesin
Links
Website Docs
Website Docs
Summary
Standardised geospatial database of urban agglomerations across all 54 African countries, built from censuses, electoral registers and satellite imagery. Each urban area is a polygon with population and built-up-area attributes, available in 2015 and 2020 versions. Data is downloadable as geospatial vector files from africapolis.org under CC BY 4.0.
Geospatial dataset mapping Nigeria's settlements as settlement blocks with block-level building counts/areas, Google Open Buildings 2.5D heights, and Sentinel-2 NDVI/EVI metrics. Released March 2026 by CIESIN/Columbia in OGC GeoPackage format under CC BY-SA 4.0 via the GRID3 Data Hub.

Africapolis Urban Agglomerations (OECD/SWAC) vs GRID3 Nigeria Settlement Extents v4.0 at a glance

Africapolis Urban Agglomerations (OECD/SWAC) and GRID3 Nigeria Settlement Extents v4.0 are both listed under Geographic in Wycord's Datasets index.

Africapolis Urban Agglomerations (OECD/SWAC) is based in Pan-African and GRID3 Nigeria Settlement Extents v4.0 in Nigeria.

Both currently show the status "Docs live".

On access, both are marked "No approval needed".

Over the last 30 days Wycord's probes measured 100% uptime for Africapolis Urban Agglomerations (OECD/SWAC) (36 checks) and 100% for GRID3 Nigeria Settlement Extents v4.0 (36 checks).

Average response time on live probes was 222 ms for Africapolis Urban Agglomerations (OECD/SWAC) and 212 ms for GRID3 Nigeria Settlement Extents v4.0.

Uptime and latency come from Wycord's own probes of each resource's website, documentation and repository, run every six hours.

How they differ

  • Pricing: Africapolis Urban Agglomerations (OECD/SWAC), Free / open; GRID3 Nigeria Settlement Extents v4.0, Free / CC-BY-SA 4.0.
  • Country: Africapolis Urban Agglomerations (OECD/SWAC), Pan-African; GRID3 Nigeria Settlement Extents v4.0, Nigeria.
  • Verification: Africapolis Urban Agglomerations (OECD/SWAC), Unverified; GRID3 Nigeria Settlement Extents v4.0, Verified.
  • Average latency: Africapolis Urban Agglomerations (OECD/SWAC), 222 ms; GRID3 Nigeria Settlement Extents v4.0, 212 ms.

Topics

Only Africapolis Urban Agglomerations (OECD/SWAC): boundaries, population, cities, geospatial, urbanization.

Only GRID3 Nigeria Settlement Extents v4.0: geopackage, settlements, grid3, building-footprints, ciesin.

Common questions

Which has better uptime, Africapolis Urban Agglomerations (OECD/SWAC) or GRID3 Nigeria Settlement Extents v4.0?
They are level at 100% over the last 30 days.
Do Africapolis Urban Agglomerations (OECD/SWAC) or GRID3 Nigeria Settlement Extents v4.0 need approval before use?
Both are marked "No approval needed".
Is the documentation for Africapolis Urban Agglomerations (OECD/SWAC) and GRID3 Nigeria Settlement Extents v4.0 working?
Both show "Docs live" at the last check.
Where are Africapolis Urban Agglomerations (OECD/SWAC) and GRID3 Nigeria Settlement Extents v4.0 based?
Africapolis Urban Agglomerations (OECD/SWAC) is based in Pan-African; GRID3 Nigeria Settlement Extents v4.0 is based in Nigeria.

More comparisons

Full details: Africapolis Urban Agglomerations (OECD/SWAC)Full details: GRID3 Nigeria Settlement Extents v4.0