{"about":"The 18 municipalities of the Lisbon metropolitan area: residents, aged 65+ and 0-14 (Census 2021), land 0.5 to 5 m above sea level (Copernicus DEM) and an estimate of residents living on it, and OSM hospitals. Low land is where sea water or river flooding CAN reach first; it is not a flood map and not a warning.","label":"fact (census counts) + hypothesis (low land and residents on it, an estimate)","source":"https://www.ine.pt/ine/json_indicador/pindica.jsp?op=2&varcd=0011609&lang=PT","sources":{"census":"https://www.ine.pt/ine/json_indicador/pindica.jsp?op=2&varcd=0011609&lang=PT","dem":"https://copernicus-dem-30m.s3.amazonaws.com/ (Copernicus_DSM_COG_10_N38/N39_W010/W009)","population_grid":"https://data.humdata.org/dataset/kontur-population-portugal (kontur_population_PT_20231101)","boundaries":"https://gisco-services.ec.europa.eu/distribution/v2/lau/geojson/LAU_RG_01M_2021_4326.geojson","hospitals":"hospitals.json"},"licence":{"census":"INE, free reuse with credit","dem":"© DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018, provided under COPERNICUS by the European Union and ESA; all rights reserved (Copernicus DEM licence: free use with this credit)","population_grid":"Kontur Population, CC BY 4.0","boundaries":"© EuroGeographics for the administrative boundaries (GISCO)","hospitals":"ODbL, © OpenStreetMap contributors"},"read_utc":"2026-11-11T12:05:00Z","method":"Low land: Copernicus DEM GLO-30 pixels (1 arc-second, ~25 x 30 m here) between 0.5 and 5.0 m, counted inside each municipality (municipalities rasterised from GISCO LAU 2021 parishes). Land = pixels at or above 0.5 m (the DEM flattens sea and large water to about 0 m). Residents on low land: each Kontur hexagon (H3 resolution 8, ~0.74 km2) times the share of its surrounding land pixels in the 0.5-5 m band, summed, rounded to 100.","confidence":"LOW to MEDIUM. The DEM is a surface model: roofs and trees lift built-up Lisbon, so low land in the city is UNDER-counted; its vertical error (a few metres) is of the size of the band itself. Heights are above the EGM2008 geoid, close to but not the same as mean sea level or IH's chart datum. Residents on low land assume people spread evenly within a hexagon. Census 2021 counts.","by":"incident.datascience@web-summit.dinis","updated":"2026-11-11T12:05:00Z","municipalities":[{"code":"1106","name":"Lisboa","residents_census_2021":545796,"age_65_plus":127768,"age_0_14":71220,"share_65_plus":0.234,"land_km2":85.5,"low_land_0_5_to_5m_km2":2.7,"low_land_share":0.032,"residents_on_low_land_estimate":8500,"hospitals_osm":39},{"code":"1111","name":"Sintra","residents_census_2021":385606,"age_65_plus":68885,"age_0_14":56903,"share_65_plus":0.179,"land_km2":319.4,"low_land_0_5_to_5m_km2":0.1,"low_land_share":0.0,"residents_on_low_land_estimate":0,"hospitals_osm":7},{"code":"1105","name":"Cascais","residents_census_2021":214124,"age_65_plus":48461,"age_0_14":31037,"share_65_plus":0.226,"land_km2":96.3,"low_land_0_5_to_5m_km2":0.4,"low_land_share":0.004,"residents_on_low_land_estimate":600,"hospitals_osm":8},{"code":"1107","name":"Loures","residents_census_2021":201590,"age_65_plus":44306,"age_0_14":29623,"share_65_plus":0.22,"land_km2":164.8,"low_land_0_5_to_5m_km2":9.8,"low_land_share":0.059,"residents_on_low_land_estimate":5900,"hospitals_osm":3},{"code":"1503","name":"Almada","residents_census_2021":177238,"age_65_plus":42185,"age_0_14":24219,"share_65_plus":0.238,"land_km2":69.4,"low_land_0_5_to_5m_km2":5.1,"low_land_share":0.073,"residents_on_low_land_estimate":12700,"hospitals_osm":5},{"code":"1110","name":"Oeiras","residents_census_2021":171658,"age_65_plus":41248,"age_0_14":24317,"share_65_plus":0.24,"land_km2":46.0,"low_land_0_5_to_5m_km2":0.7,"low_land_share":0.016,"residents_on_low_land_estimate":800,"hospitals_osm":4},{"code":"1115","name":"Amadora","residents_census_2021":171454,"age_65_plus":38087,"age_0_14":24351,"share_65_plus":0.222,"land_km2":23.3,"low_land_0_5_to_5m_km2":0.0,"low_land_share":0.0,"residents_on_low_land_estimate":0,"hospitals_osm":5},{"code":"1510","name":"Seixal","residents_census_2021":166507,"age_65_plus":35837,"age_0_14":24494,"share_65_plus":0.215,"land_km2":86.9,"low_land_0_5_to_5m_km2":4.8,"low_land_share":0.055,"residents_on_low_land_estimate":8500,"hospitals_osm":1},{"code":"1116","name":"Odivelas","residents_census_2021":148034,"age_65_plus":30912,"age_0_14":22336,"share_65_plus":0.209,"land_km2":26.7,"low_land_0_5_to_5m_km2":0.0,"low_land_share":0.0,"residents_on_low_land_estimate":0,"hospitals_osm":1},{"code":"1114","name":"Vila Franca de Xira","residents_census_2021":137529,"age_65_plus":25424,"age_0_14":20920,"share_65_plus":0.185,"land_km2":229.0,"low_land_0_5_to_5m_km2":131.1,"low_land_share":0.572,"residents_on_low_land_estimate":12900,"hospitals_osm":1},{"code":"1512","name":"Setúbal","residents_census_2021":123496,"age_65_plus":28493,"age_0_14":17516,"share_65_plus":0.231,"land_km2":165.1,"low_land_0_5_to_5m_km2":14.6,"low_land_share":0.088,"residents_on_low_land_estimate":7300,"hospitals_osm":8},{"code":"1109","name":"Mafra","residents_census_2021":86515,"age_65_plus":15375,"age_0_14":14177,"share_65_plus":0.178,"land_km2":291.3,"low_land_0_5_to_5m_km2":0.6,"low_land_share":0.002,"residents_on_low_land_estimate":200,"hospitals_osm":0},{"code":"1504","name":"Barreiro","residents_census_2021":78345,"age_65_plus":20025,"age_0_14":10323,"share_65_plus":0.256,"land_km2":30.6,"low_land_0_5_to_5m_km2":3.7,"low_land_share":0.121,"residents_on_low_land_estimate":11300,"hospitals_osm":1},{"code":"1508","name":"Palmela","residents_census_2021":68852,"age_65_plus":14564,"age_0_14":9994,"share_65_plus":0.212,"land_km2":461.4,"low_land_0_5_to_5m_km2":6.2,"low_land_share":0.013,"residents_on_low_land_estimate":100,"hospitals_osm":0},{"code":"1506","name":"Moita","residents_census_2021":66255,"age_65_plus":14514,"age_0_14":9809,"share_65_plus":0.219,"land_km2":43.1,"low_land_0_5_to_5m_km2":6.1,"low_land_share":0.141,"residents_on_low_land_estimate":12400,"hospitals_osm":0},{"code":"1507","name":"Montijo","residents_census_2021":55682,"age_65_plus":10445,"age_0_14":9013,"share_65_plus":0.188,"land_km2":342.2,"low_land_0_5_to_5m_km2":5.7,"low_land_share":0.017,"residents_on_low_land_estimate":5100,"hospitals_osm":3},{"code":"1511","name":"Sesimbra","residents_census_2021":52384,"age_65_plus":10686,"age_0_14":7829,"share_65_plus":0.204,"land_km2":193.2,"low_land_0_5_to_5m_km2":1.6,"low_land_share":0.008,"residents_on_low_land_estimate":100,"hospitals_osm":0},{"code":"1502","name":"Alcochete","residents_census_2021":19143,"age_65_plus":3407,"age_0_14":3132,"share_65_plus":0.178,"land_km2":91.6,"low_land_0_5_to_5m_km2":17.5,"low_land_share":0.191,"residents_on_low_land_estimate":1800,"hospitals_osm":0}]}