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Global Risks Index

NXS-GRX-USA · Northern America · Regions

Ohio

First-level unit, United States of America: people, area, the units inside and neighbours, with risk values when released.

Map All 56 first-level units
Page GRX-USA-REdition Baseline Edition 2026Evidence close 2026-09-30ISO USA / USStatus UN member stateValues not yet publishedMethod v1.0.0-draft
11,816,779
people (GHSL 2025)
106,743 km²
area
3.4%
of United States of America
88
units inside

01মানচিত্র

Inside Ohio

The 88 ADM2 units of Ohio.

FIG 1 · 88 units inside Ohio
Loading the map

Units rise with people per km² · GHSL 2025 raster · terrain · ADM1 ADM2Risk values when released
Lowest fifthLow fifthMiddle fifthHigh fifthHighest fifthNo data
Column height and colour show people per km² by unit, in quantile fifths among the units shown (the key on the map gives the breaks); units with no people on the grid are grey, not the lowest class; the raster beneath is the GHSL 2025 population grid. Source observations, not index values. Select a unit to drill into the units inside it; the path above the map climbs back.
02Figures

People, area and density

Source observations from open grids summed inside the boundary; not index values.

মানুষ · GHSL 2025

11,816,779

3.4% of United States of America.

মানুষ · WorldPop 2025

11,426,606

-3% against GHSL; the two grids differ in method.

Area

106,743 km²

111 people per km².

Code

US-OH

Subdivision code as carried by the boundary source.

03Units

88 units inside Ohio

Each unit has its own page.

Boundary licences: Public Domain

Unit Code People (GHSL) People (WorldPop) Area km² Per km² Share Coast ≤ 10 m
Adams – 28,080 24,865 1,510.06 19 0.2% 0
Allen – 102,626 92,790 1,053.22 97 0.9% 0
Ashland – 52,305 49,126 1,105.68 47 0.4% 0
Ashtabula – 95,854 85,420 1,832.81 52 0.8% 0
Athens – 59,419 52,128 1,314.31 45 0.5% 0
Auglaize – 40,505 39,319 1,038.93 39 0.3% 0
Belmont – 62,540 54,361 1,399.12 45 0.5% 0
Brown – 45,910 40,888 1,279.24 36 0.4% 0
Butler – 384,966 384,971 1,218.28 316 3.3% 0
Carroll – 34,536 28,533 1,032.28 33 0.3% 0
Champaign – 40,378 36,266 1,111.65 36 0.3% 0
Clark – 136,513 128,670 1,041.61 131 1.2% 0
Clermont – 189,808 191,385 1,190.24 159 1.6% 0
Clinton – 41,111 39,805 1,067.96 38 0.3% 0
Columbiana – 108,884 94,050 1,383.99 79 0.9% 0
Coshocton – 42,287 39,482 1,465.01 29 0.4% 0
Crawford – 38,345 34,840 1,038.79 37 0.3% 0
Cuyahoga – 1,110,189 1,124,471 1,187.8 935 9.4% 0
Darke – 51,772 47,334 1,552.51 33 0.4% 0
Defiance – 41,824 39,444 1,068.26 39 0.4% 0
Delaware – 193,062 191,363 1,181.93 163 1.6% 0
Erie – 64,255 60,381 737.02 87 0.5% 0
Fairfield – 169,628 163,627 1,317.01 129 1.4% 0
Fayette – 29,375 27,416 1,054.38 28 0.2% 0
Franklin – 1,510,521 1,432,096 1,408.64 1,072 12.8% 0
Fulton – 35,789 34,591 1,052.54 34 0.3% 0
Gallia – 30,801 26,035 1,219.68 25 0.3% 0
Geauga – 91,434 89,900 1,053.86 87 0.8% 0
Greene – 167,164 163,472 1,076.73 155 1.4% 0
Guernsey – 39,832 36,578 1,368.45 29 0.3% 0
Hamilton – 827,527 835,527 1,068.75 774 7% 0
Hancock – 80,705 76,964 1,381.09 58 0.7% 0
Hardin – 32,032 28,417 1,218.52 26 0.3% 0
Harrison – 17,147 13,481 1,062.73 16 0.1% 0
Henry – 28,932 26,709 1,088.74 27 0.2% 0
Highland – 45,321 41,895 1,444.73 31 0.4% 0
Hocking – 34,834 30,101 1,095.97 32 0.3% 0
Holmes – 41,850 41,954 1,092.12 38 0.4% 0
Huron – 64,515 59,472 1,282.03 50 0.5% 0
Jackson – 33,165 30,682 1,089.59 30 0.3% 0
Jefferson – 78,215 67,265 1,065.86 73 0.7% 0
Knox – 63,172 61,724 1,378.42 46 0.5% 0
Lake – 216,315 224,862 599.24 361 1.8% 0
Lawrence – 75,182 62,835 1,182.62 64 0.6% 0
Licking – 159,737 159,152 1,777.16 90 1.4% 0
Logan – 44,951 43,453 1,209.43 37 0.4% 0
Lorain – 285,624 299,806 1,281.43 223 2.4% 0
Lucas – 452,952 428,752 906.62 500 3.8% 0
Madison – 41,438 39,919 1,203.12 34 0.4% 0
Mahoning – 241,692 228,819 1,097.1 220 2% 0
Marion – 66,699 61,204 1,050.37 64 0.6% 0
Medina – 190,254 194,444 1,092.38 174 1.6% 0
Meigs – 20,643 16,935 1,121.56 18 0.2% 0
Mercer – 42,623 43,807 1,222.14 35 0.4% 0
Miami – 109,455 108,481 1,061.39 103 0.9% 0
Monroe – 18,924 16,330 1,183.73 16 0.2% 0
Montgomery – 530,852 512,528 1,202.24 442 4.5% 0
Morgan – 14,995 11,894 1,089.9 14 0.1% 0
Morrow – 37,355 34,511 1,040.19 36 0.3% 0
Muskingum – 90,464 85,623 1,742.38 52 0.8% 0
Noble – 15,341 13,805 1,042.65 15 0.1% 0
Ottawa – 32,366 28,742 773.45 42 0.3% 0
Paulding – 18,509 16,754 1,084.33 17 0.2% 0
Perry – 30,239 26,872 1,066.56 28 0.3% 0
Pickaway – 52,094 53,905 1,309.04 40 0.4% 0
Pike – 31,418 26,408 1,147.04 27 0.3% 0
Portage – 173,265 162,865 1,306.3 133 1.5% 0
Preble – 38,891 35,728 1,102.34 35 0.3% 0
Putnam – 36,106 34,589 1,252.11 29 0.3% 0
Richland – 129,669 126,938 1,295.36 100 1.1% 0
Ross – 79,038 74,820 1,796.92 44 0.7% 0
Sandusky – 58,282 52,568 1,080.71 54 0.5% 0
Scioto – 62,477 51,228 1,596.53 39 0.5% 0
Seneca – 44,731 41,023 1,429.65 31 0.4% 0
Shelby – 54,445 50,313 1,060.28 51 0.5% 0
Stark – 356,313 339,029 1,500.69 237 3% 0
Summit – 562,045 534,089 1,085.56 518 4.8% 0
Trumbull – 192,187 182,119 1,648.88 117 1.6% 0
Tuscarawas – 88,696 86,625 1,484.66 60 0.7% 0
Union – 77,374 84,396 1,131.46 68 0.7% 0
Van Wert – 25,097 24,250 1,061.05 24 0.2% 0
Vinton – 14,029 12,084 1,074.34 13 0.1% 0
Warren – 253,088 270,460 1,052.17 241 2.1% 0
Washington – 70,231 64,251 1,659.67 42 0.6% 0
Wayne – 124,203 122,389 1,439.74 86 1.1% 0
Williams – 34,826 32,319 1,093.16 32 0.3% 0
Wood – 122,822 126,010 1,602.37 77 1% 0
Wyandot – 23,200 20,760 1,053.92 22 0.2% 0
04Exposure

Open exposure layers

Count of H3 resolution-3 cells whose centre falls in the unit and that carry each Natural Earth layer.

Urban areas
6,359.2 H3 cells
বন্দর
1 H3 cells
বিমানবন্দর
4 H3 cells
Major roads
9,451.2 H3 cells
রেলপথ
3,062.2 H3 cells
Rivers and lakes
1,050.8 H3 cells
05ঝুঁকি

Risk values

Values when released. Subnational risk values for Ohio publish with the edition from The Global Risks Index. Until then, run a scenario on open data for United States of America.
Run a scenario Hazards Domain indices
06Neighbours

Neighbouring units

07উৎস

Sources, credits and licences

ADM1 boundaries
geoBoundaries (William & Mary geoLab), gbOpen USA ADM1, source: United States Census Bureau, MAF/TIGER Database, licence: Public Domain · source · represents 2018
ADM2 boundaries
geoBoundaries (William & Mary geoLab), gbOpen USA ADM2, source: United States Census Bureau, MAF/TIGER Database, licence: Public Domain · source · represents 2018
Basemap
OpenFreeMap © OpenMapTiles (CC BY 4.0) · data © OpenStreetMap contributors (ODbL 1.0). Vector tiles requested by the reader’s browser, unmodified; the map falls back to plain land and sea when the host does not answer.
Terrain
Terrain Tiles (Mapzen, AWS Open Data), compiled from SRTM and other public elevation sources (NASA, USGS, ETOPO1, GMTED, EU-DEM under the Copernicus programme, Geoscience Australia, Kartverket, INEGI, LINZ, data.gov.uk). Display relief, not survey data.
People
GHSL 2025 population grid, European Commission Joint Research Centre (CC BY 4.0), shown at 0.05° and summed per unit; WorldPop 2025 (CC BY 4.0) as a second estimate. Units smaller than a grid cell take the density of the cell under them.
দেশ
Natural Earth (public domain).
Elevation
GEBCO Compilation Group (2024) GEBCO 2024 Grid (public domain), reduced to 0.05°: the share of each cell’s land at or below 10 m, weighted by GHSL 2025 people for the low coastal zone.
Position
Boundaries are shown for location only and take no position on any boundary, name or status.

অবস্থা

The methodology, structure and definitions of The Global Risks Index are a preparatory working draft (2026), circulated for review and comment and not for implementation. No value appears until an edition is released from a governed evidence cut; values then carry intervals, classes, sources and their correction pathway. Simulators run the published methods on numbers you choose and never show a NXS-GRX value.

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NXS-GRX যা নয়

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Avis en français

La méthodologie et les définitions du NXS-GRX sont un projet de travail préparatoire (2026). Le NXS-GRX est une information de recherche et d’analyse des risques : ni notation, ni indice de référence financier, ni statistique officielle, ni alerte, ni conseil. Les classes de risque sont des bandes sur une échelle publiée, non des classements.