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Global Risks Index

NXS-GRX-BRA · South America · Regions

Piaui

First-level unit, Brazil: people, area, the units inside and neighbours, with risk values when released.

Map All 27 first-level units
Page GRX-BRA-REdition Baseline Edition 2026Evidence close 2026-09-30ISO BRA / BRStatus UN member stateValues not yet publishedMethod v1.0.0-draft
3,583,321
人（GHSL 2025）
252,827 km²
面积
1.7%
of Brazil
221
所辖单位

01地图

Inside Piaui

The 221 ADM2 units of Piaui.

FIG 1 · 221 units inside Piaui
正在加载地图

单位高度随每 km² 人口升高 · GHSL 2025 栅格 · 地形 · ADM1 ADM2风险值将在发布时提供
最低五分位较低五分位中间五分位较高五分位最高五分位无数据
柱高和颜色表示各单位每 km² 人口，按所示单位的五分位数分级（地图图例给出分界值）；网格上无人口的单位显示为灰色，不属于最低一级；底层栅格为 GHSL 2025 人口网格。这些是来源观测值，不是指数值。从列表中选择一项人道主义数据，按其为单位着色并抬升；每项数据的来源显示在单位页面上。选择一个单位可深入查看其下辖单位；地图上方的路径可逐级返回。
02数据概览

人口、面积和密度

来自开放网格、在边界内汇总的来源观测值；不是指数值。

人口 · GHSL 2025

3,583,321

1.7% of Brazil.

人口 · WorldPop 2025

3,492,994

与 GHSL 相差 -3%；两套网格的方法不同。

面积

252,827 km²

14 people per km².

代码

BR-PI

边界来源所载的行政区划代码。

低海拔沿海地带

71,635

人居住在海拔 10 m 及以下的土地上，占该单位的 2.0%（GEBCO 2024 和 GHSL 2025）。

03人道主义数据

Piaui in humanitarian data

来自人道主义数据交换平台（Humanitarian Data Exchange）的来源观测值，按名称与该单位匹配，每项均附有参考日期、提供方和许可协议。它们不是指数值。

人口 · 2022-12-31

3,271,199

人。UNFPA · Creative Commons Attribution for Intergovernmental Organisations (CC BY-IGO)。

Poverty headcount · 2015-12-31

9%

的人口处于多维贫困。Oxford Poverty & Human Development Initiative · Public Domain / No restrictions (CC0)。

04单位

221 units inside Piaui

每个单位都有自己的页面。

边界许可：Creative Commons Attribution 2.5 Generic · Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)

单位 代码 人口（GHSL） 人口（WorldPop） 面积 km² 每平方公里 占比 沿海 ≤ 10 m
Acauã – 7,969 6,596 1,284.39 6 0.2% 0
Agricolândia – 5,004 4,731 112.6 44 0.1% 0
Água Branca – 17,478 18,409 97.67 179 0.5% 0
Alagoinha do Piauí – 8,498 7,118 538.27 16 0.2% 0
Alegrete do Piauí – 4,796 4,341 244.59 20 0.1% 0
Alto Longá – 14,954 13,639 1,745.2 9 0.4% 0
Altos – 44,765 50,125 962.25 47 1.3% 0
Alvorada do Gurguéia – 5,747 5,655 2,142.42 3 0.2% 0
Amarante – 22,509 20,951 1,160.52 19 0.7% 0
Angical do Piauí – 7,445 7,690 224.26 33 0.2% 0
Anísio de Abreu – 10,226 10,033 339.64 30 0.3% 0
Antônio Almeida – 3,245 3,293 648.95 5 0.1% 0
Aroazes – 6,228 5,316 825.65 8 0.2% 0
Aroeiras do Itaim – 2,854 2,691 318.23 9 0.1% 0
Arraial – 4,863 4,657 687.06 7 0.1% 0
Assunção do Piauí – 8,032 7,774 1,696.52 5 0.2% 0
Avelino Lopes – 11,910 11,217 1,223.07 10 0.3% 0
Baixa Grande do Ribeiro – 11,780 13,981 7,842.06 2 0.3% 0
Barra D’Alcântara – 3,532 3,961 263.72 13 0.1% 0
Barras – 49,715 51,031 1,729.75 29 1.4% 0
Barreiras do Piauí – 3,392 3,389 2,177.63 2 0.1% 0
Barro Duro – 7,241 6,658 160.28 45 0.2% 0
Batalha – 33,421 33,271 1,595.83 21 1% 0
Bela Vista do Piauí – 4,209 4,198 501.32 8 0.1% 0
Belém do Piauí – 3,029 2,995 244.4 12 0.1% 0
Beneditinos – 10,581 10,427 939.34 11 0.3% 0
Bertolínia – 5,846 6,074 1,229.85 5 0.2% 0
Betânia do Piauí – 5,066 5,592 583.26 9 0.1% 0
Boa Hora – 6,434 6,976 338.37 19 0.2% 0
Bocaina – 4,656 3,969 261.84 18 0.1% 0
Bom Jesus – 27,181 31,694 5,494.34 5 0.8% 0
Bom Princípio do Piauí – 6,268 6,192 525.09 12 0.2% 0
Bonfim do Piauí – 5,450 5,883 289.91 19 0.2% 0
Boqueirão do Piauí – 7,168 7,412 271.15 26 0.2% 0
Brasileira – 8,377 8,658 885.87 9 0.2% 0
Brejo do Piauí – 4,297 3,910 2,275.86 2 0.1% 0
Buriti dos Lopes – 19,215 20,474 693.06 28 0.6% 4,410
Buriti dos Montes – 8,783 7,822 2,448.03 4 0.3% 0
Cabeceiras do Piauí – 11,892 11,551 612.01 19 0.3% 0
Cajazeiras do Piauí – 3,803 3,072 515.85 7 0.1% 0
Caldeirão Grande do Piauí – 6,037 5,613 469.04 13 0.2% 0
Campinas do Piauí – 5,241 4,368 787.42 7 0.2% 0
Campo Alegre do Fidalgo – 4,897 4,610 660.43 7 0.1% 0
Campo Grande do Piauí – 6,558 6,331 313.95 21 0.2% 0
Campo Largo do Piauí – 6,379 6,633 479.3 13 0.2% 0
Campo Maior – 46,646 47,610 1,687.02 28 1.4% 0
Canavieira – 4,018 3,256 2,170.53 2 0.1% 0
Canto do Buriti – 21,672 19,577 4,344.26 5 0.6% 0
Capitão de Campos – 12,860 12,173 572.28 22 0.4% 0
Capitão Gervásio Oliveira – 4,163 4,031 1,138.28 4 0.1% 0
Caracol – 12,661 11,772 1,617.52 8 0.4% 0
Caraúbas do Piauí – 5,762 5,718 472.38 12 0.2% 12
Caridade do Piauí – 5,323 5,221 500.31 11 0.2% 0
Castelo do Piauí – 19,999 19,941 2,388.85 8 0.6% 0
Caxingó – 5,904 6,013 494.22 12 0.2% 677
Cocal – 28,299 29,013 1,300.41 22 0.8% 0
Cocal de Telha – 4,795 4,912 312.08 15 0.1% 0
Cocal dos Alves – 7,407 7,652 326.09 23 0.2% 0
Coivaras – 4,422 4,738 487.49 9 0.1% 0
Colônia do Gurguéia – 6,775 6,295 430.67 16 0.2% 0
Colônia do Piauí – 7,981 6,987 951.58 8 0.2% 0
Conceição do Canindé – 4,836 5,354 827.35 6 0.1% 0
Coronel José Dias – 4,948 4,225 1,924.1 3 0.1% 0
Corrente – 27,775 28,856 3,060.49 9 0.8% 0
Cristalândia do Piauí – 8,869 7,168 1,207.21 7 0.3% 0
Cristino Castro – 11,944 11,553 1,853.88 6 0.3% 0
Curimatá – 11,904 11,940 2,355.04 5 0.3% 0
Currais – 5,406 5,231 3,168.34 2 0.2% 0
Curral Novo do Piauí – 5,978 5,893 758.33 8 0.2% 0
Curralinhos – 4,940 4,672 347.22 14 0.1% 0
Demerval Lobão – 16,073 18,755 217.02 74 0.5% 0
Dirceu Arcoverde – 6,935 7,236 1,021.96 7 0.2% 0
Dom Expedito Lopes – 4,496 4,038 220.04 20 0.1% 0
Dom Inocêncio – 9,771 9,503 3,886.46 3 0.3% 0
Domingos Mourão – 4,910 4,272 852.88 6 0.1% 0
Elesbão Veloso – 15,322 13,653 1,391.32 11 0.4% 0
Eliseu Martins – 5,106 4,290 1,096.1 5 0.1% 0
Esperantina – 36,022 38,208 913.31 39 1% 0
Fartura do Piauí – 6,036 5,963 716.25 8 0.2% 0
Flores do Piauí – 4,605 4,535 950.76 5 0.1% 0
Floresta do Piauí – 1,984 1,944 223.9 9 0.1% 0
Floriano – 70,064 75,355 3,425.34 20 2% 0
Francinópolis – 5,443 4,240 269.12 20 0.2% 0
Francisco Ayres – 4,671 4,638 658.47 7 0.1% 0
Francisco Macedo – 3,626 3,115 177.37 20 0.1% 0
Francisco Santos – 8,485 7,072 494.32 17 0.2% 0
Fronteiras – 11,947 9,702 781 15 0.3% 0
Geminiano – 7,588 8,350 443.65 17 0.2% 0
Gilbués – 14,661 14,668 3,511.61 4 0.4% 0
Guadalupe – 10,606 10,716 1,027.89 10 0.3% 0
Guaribas – 4,424 4,065 3,131.22 1 0.1% 0
Hugo Napoleão – 4,003 3,450 225.65 18 0.1% 0
Inhuma – 15,606 15,634 982.87 16 0.5% 0
Ipiranga do Piauí – 10,144 9,877 531.51 19 0.3% 0
Isaías Coelho – 9,147 7,935 803.97 11 0.3% 0
Itainópolis – 12,494 11,183 831.73 15 0.4% 0
Itaueira – 11,417 10,504 2,565.02 4 0.3% 0
Jacobina do Piauí – 5,873 5,522 1,339.81 4 0.2% 0
Jaicós – 20,374 18,192 867.64 23 0.6% 0
Jardim do Mulato – 4,605 3,959 512.25 9 0.1% 0
Jatobá do Piauí – 5,961 5,110 652.78 9 0.2% 0
Jerumenha – 4,293 4,467 1,875.61 2 0.1% 0
João Costa – 3,079 2,999 1,808.42 2 0.1% 0
Joaquim Pires – 13,825 13,617 743.16 19 0.4% 37
José de Freitas – 44,235 45,503 1,543.88 29 1.3% 0
Juazeiro do Piauí – 5,823 5,590 939.73 6 0.2% 0
Júlio Borges – 5,849 5,495 1,288.5 5 0.2% 0
Jurema – 4,195 3,831 1,277.81 3 0.1% 0
Lagoa Alegre – 8,330 8,122 396.54 21 0.2% 0
Lagoa de São Francisco – 6,484 6,150 156.15 42 0.2% 0
Lagoa do Barro do Piauí – 5,404 5,592 1,336.55 4 0.2% 0
Lagoa do Piauí – 5,212 5,817 429.98 12 0.2% 0
Lagoa do Sítio – 5,908 4,623 807.6 7 0.2% 0
Lagoinha do Piauí – 2,862 3,017 67.77 42 0.1% 0
Landri Sales – 4,995 5,123 1,093.81 5 0.1% 0
Luís Correia – 18,018 17,125 1,078.67 17 0.5% 2,859
Luzilândia – 27,761 27,662 707.72 39 0.8% 0
Madeiro – 6,294 5,428 177.9 35 0.2% 0
Manoel Emídio – 5,314 5,062 1,626.18 3 0.2% 0
Marcolândia – 13,351 12,690 140.32 95 0.4% 0
Marcos Parente – 4,669 4,838 679.79 7 0.1% 0
Massapê do Piauí – 6,429 4,648 533.82 12 0.2% 0
Matias Olímpio – 11,428 11,216 227.68 50 0.3% 0
Miguel Alves – 37,606 36,391 1,398.93 27 1.1% 0
Miguel Leão – 1,376 1,459 93.77 15 0% 0
Milton Brandão – 6,733 6,441 1,315.36 5 0.2% 0
Monsenhor Gil – 10,176 10,313 569.79 18 0.3% 0
Monsenhor Hipólito – 8,198 8,403 402.97 20 0.2% 0
Monte Alegre do Piauí – 7,614 7,886 2,426.38 3 0.2% 0
Morro Cabeça no Tempo – 4,520 4,290 2,218.8 2 0.1% 0
Morro do Chapéu do Piauí – 7,214 7,080 329.7 22 0.2% 0
Murici dos Portelas – 12,738 10,324 481.8 26 0.4% 1,179
Nazaré do Piauí – 7,952 6,719 1,321.01 6 0.2% 0
Nazária – 6,766 8,185 365.8 18 0.2% 0
Nossa Senhora de Nazaré – 3,889 4,151 358.09 11 0.1% 0
Nossa Senhora dos Remédios – 9,230 9,107 358.36 26 0.3% 0
Nova Santa Rita – 4,524 4,147 912.91 5 0.1% 0
Novo Oriente do Piauí – 6,780 6,046 529.4 13 0.2% 0
Novo Santo Antônio – 3,405 2,933 447.6 8 0.1% 0
Oeiras – 39,049 40,957 2,714.66 14 1.1% 0
Olho D’Água do Piauí – 2,289 2,378 183.47 12 0.1% 0
Padre Marcos – 7,289 6,536 280.41 26 0.2% 0
Paes Landim – 4,027 4,110 403.45 10 0.1% 0
Pajeú do Piauí – 3,523 3,068 991.41 4 0.1% 0
Palmeira do Piauí – 5,165 5,218 2,027.13 3 0.1% 0
Palmeirais – 16,499 15,254 1,504.66 11 0.5% 0
Paquetá – 3,727 3,512 433.95 9 0.1% 0
Parnaguá – 11,175 10,010 3,442.78 3 0.3% 0
Parnaíba – 175,353 182,278 439.77 399 5.1% 75,304
Passagem Franca do Piauí – 4,596 4,014 646.08 7 0.1% 0
Patos do Piauí – 6,897 5,508 805.65 9 0.2% 0
Pau D’Arco do Piauí – 4,083 4,046 432.57 9 0.1% 0
Paulistana – 22,308 22,609 1,950.74 11 0.6% 0
Pavussu – 3,778 3,805 1,095.32 3 0.1% 0
Pedro II – 40,083 39,394 1,552.67 26 1.2% 0
Pedro Laurentino – 2,808 2,517 873.88 3 0.1% 0
Picos – 82,876 89,519 579.43 143 2.4% 0
Pimenteiras – 12,915 11,130 4,581.74 3 0.4% 0
Pio IX – 18,165 17,572 1,958.3 9 0.5% 0
Piracuruca – 29,749 29,570 2,379.52 13 0.9% 0
Piripiri – 66,154 69,646 1,413.41 47 1.9% 0
Porto – 4,925 3,787 255.5 19 0.1% 0
Porto Alegre do Piauí – 2,263 1,960 1,174.6 2 0.1% 0
Prata do Piauí – 3,545 3,343 199.2 18 0.1% 0
Queimada Nova – 8,899 8,966 1,289.66 7 0.3% 0
Redenção do Gurguéia – 8,676 8,529 2,478.07 4 0.3% 0
Regeneração – 17,308 16,062 1,256.47 14 0.5% 0
Riacho Frio – 4,620 4,527 2,231.71 2 0.1% 0
Ribeira do Piauí – 5,289 4,442 1,018.09 5 0.2% 0
Ribeiro Gonçalves – 7,685 6,017 3,993.39 2 0.2% 0
Rio Grande do Piauí – 6,732 5,600 638.87 11 0.2% 0
Santa Cruz do Piauí – 6,948 6,327 586.65 12 0.2% 0
Santa Cruz dos Milagres – 3,718 3,066 982.77 4 0.1% 0
Santa Filomena – 19,122 17,217 5,307.57 4 0.6% 0
Santa Luz – 4,821 4,602 1,191.16 4 0.1% 0
Santa Rosa do Piauí – 5,452 4,480 342.36 16 0.2% 0
Santana do Piauí – 4,612 3,869 111.09 42 0.1% 0
Santo Antônio de Lisboa – 6,000 5,496 386.57 16 0.2% 0
Santo Antônio dos Milagres – 2,941 2,886 34.22 86 0.1% 0
Santo Inácio do Piauí – 4,730 4,141 856.17 6 0.1% 0
São Braz do Piauí – 5,821 5,293 658.45 9 0.2% 0
São Félix do Piauí – 3,083 2,820 629.58 5 0.1% 0
São Francisco de Assis do Piauí – 6,570 6,046 1,077.03 6 0.2% 0
São Francisco do Piauí – 6,722 5,044 1,346.9 5 0.2% 0
São Gonçalo do Gurguéia – 3,043 2,913 1,390.98 2 0.1% 0
São Gonçalo do Piauí – 1,691 1,399 150 11 0% 0
São João da Canabrava – 2,413 2,073 482.72 5 0.1% 0
São João da Fronteira – 5,909 5,517 820.81 7 0.2% 0
São João da Serra – 6,275 6,409 1,000.51 6 0.2% 0
São João da Varjota – 4,804 4,261 397.01 12 0.1% 0
São João do Arraial – 8,867 9,283 213.99 41 0.3% 0
São João do Piauí – 20,618 22,580 1,532.69 13 0.6% 0
São José do Divino – 5,841 5,140 321.43 18 0.2% 0
São José do Peixe – 3,741 3,024 1,291.95 3 0.1% 0
São José do Piauí – 7,202 6,951 375.57 19 0.2% 0
São Julião – 6,354 6,069 292.04 22 0.2% 0
São Lourenço do Piauí – 4,967 4,860 674.71 7 0.1% 0
São Luis do Piauí – 4,503 3,992 218.69 21 0.1% 0
São Miguel da Baixa Grande – 2,594 2,404 447.56 6 0.1% 0
São Miguel do Fidalgo – 3,128 2,859 817.53 4 0.1% 0
São Miguel do Tapuio – 18,937 18,426 5,009.93 4 0.5% 0
São Pedro do Piauí – 17,736 17,251 520.82 34 0.5% 0
São Raimundo Nonato – 36,747 42,315 2,424.8 15 1.1% 0
Sebastião Barros – 3,614 3,141 896.55 4 0.1% 0
Sebastião Leal – 4,608 4,764 3,166.38 1 0.1% 0
Sigefredo Pacheco – 9,828 8,802 1,036.2 9 0.3% 0
Simões – 15,530 15,346 1,079.49 14 0.5% 0
Simplício Mendes – 13,624 15,345 1,366.77 10 0.4% 0
Socorro do Piauí – 4,700 3,961 764.14 6 0.1% 0
Sussuapara – 6,437 5,831 206.97 31 0.2% 0
Tamboril do Piauí – 2,989 2,997 1,593.95 2 0.1% 0
Tanque do Piauí – 1,436 964 398.5 4 0% 0
Teresina – 976,839 908,324 1,398 699 28.3% 0
União – 23,453 22,825 1,180.21 20 0.7% 0
Uruçuí – 9,349 12,732 8,451.9 1 0.3% 0
Valença do Piauí – 21,164 23,411 1,339.19 16 0.6% 0
Várzea Branca – 4,378 4,559 453.24 10 0.1% 0
Várzea Grande – 6,139 5,957 237.77 26 0.2% 0
Vera Mendes – 2,912 3,030 342.28 9 0.1% 0
Vila Nova do Piauí – 3,585 3,219 222.85 16 0.1% 0
Wall Ferraz – 3,956 3,467 270.95 15 0.1% 0
05风险暴露

开放风险暴露图层

中心点落在该单位内且包含各 Natural Earth 图层的 H3 分辨率 3 单元格数量。

城市区域
51 H3 cells
港口
在此分辨率下没有
机场
在此分辨率下没有
主要道路
3,315.6 H3 cells
铁路
379.4 H3 cells
河流和湖泊
707.1 H3 cells
06风险

风险值

Values when released. Subnational risk values for Piaui publish with the edition from The Global Risks Index. Until then, run a scenario on open data for Brazil.
运行情景 危害 领域指数
07相邻单位

相邻单位

08来源

来源、致谢与许可协议

ADM1 边界
geoBoundaries (William & Mary geoLab), gbOpen BRA ADM1, source: geoBoundaries, Wikimedia Commons, licence: Creative Commons Attribution 2.5 Generic · source · represents 2006
ADM2 边界
geoBoundaries (William & Mary geoLab), gbOpen BRA ADM2, source: Instituto Brasileiro de Geografia e Estatística (IBGE), OCHA ROLAC, licence: Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO) · source · represents 2020
底图
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.
地形
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.
人口
GHSL 2025 人口网格，欧盟委员会联合研究中心（CC BY 4.0），以 0.05° 显示并按单位求和；WorldPop 2025（CC BY 4.0）作为第二个估计。小于一个格网单元的单位采用其所在格网单元的密度。
国家
Natural Earth（公有领域）。
高程
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.
立场
边界仅用于标示位置，不对任何边界、名称或地位持立场。

状态

The Global Risks Index 的方法、结构和定义为预备性工作草案（2026），供审阅和评论，不供实施。在从受治理的证据截取中发布版本之前，不会出现任何数值；届时数值将附有区间、类别、来源及其更正途径。模拟器以您选择的数字运行已发布的方法，绝不显示 NXS-GRX 数值。

国家概况解读的是关于某地的公开证据。它不是任何政府的声明，也不是关于任何政府政策的声明；不对任何领土的地位表明立场，也不意味着存在国家计划或参与。名称遵循 UN M49。

NXS-GRX 不是什么

NXS-GRX 是研究和风险分析信息。它不是信用评级或 ESG 评级，不使用任何评级尺度；它不是金融工具的基准，不是官方统计，不是紧急警报或官方分类，也不是建议。不得用于评估自然人。风险等级是已发布尺度上的区间，绝不是对国家或个人的排名。

Pulse 信号和展望概率是供主管当局审查的信息，绝不是公共警报；官方警报只由获授权的当局发布。

机构与来源

The Nexus Consortium is stewarded by three independent not-for-profit institutions: The Global Centre for Risk and Innovation (GCRI), through GCRI US in Washington, DC and GCRI Canada in Ontario, with GCRI Canada as Lead Institution, Consortium Secretariat and lead contracting organisation; The Global Risks Forum (GRF); and The Global Risks Alliance (GRA). Technology, infrastructure and service providers work with the Consortium at arm’s length under written agreements, like every other external party in the public-private-planet model, and hold no role in its stewardship.

每个数值均附有其来源的署名，这些来源保留各自的许可。外部名称仅为互操作性而引用。Nexus 撰写的文本拟在发布时采用 CC BY 4.0。

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.