Categories in Seia
Auto Machine ShopAuto Parts StoreCar & Light Vehicle DealershipsCar repairCar Repair and MaintenanceGas StationGeneral Auto Parts & AccessoriesNew car dealersTire ShopElectronics WholesalerFurniture MakerFurniture ManufacturerHandicraftImport Export CompanyClothing storesFashion Accessories StoreShoe storesWomen's clothingAssociation or OrganizationCatholic ChurchChapelChurchesGovernment OfficeMailing ServiceNon-Profit OrganizationShipping ServiceSocial AssociationAppliance StoreBuilding FirmBuilding Materials StoreCarpentryConstruction of buildingsElectricianGeneral contractorsHome Goods StoreResidential BuildingTechnical construction servicesDriving schoolsEducationPrimary and elementary schoolsMuseumsTourist AttractionBakeriesBars, pubs and tavernsButcherCafesCheese ShopCoffee ShopGrocery stores and supermarketsPastry Shop
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Industries
Business Distribution by Industry in Seia
| Industry Description | Number of Establishments | Average Age of Business |
|---|---|---|
| Restaurants | 50 | — |
| Shopping | 43 | 35 years |
| Clothing stores | 27 | — |
| Other accommodation | 27 | — |
| Grocery stores and supermarkets | 24 | — |
| Cafes | 22 | — |
| All membership organizations | 20 | — |
| Bars, pubs and taverns | 19 | — |
| All food and beverage | 19 | — |
| Hotels and motels | 18 | — |
| Corporate management | 18 | — |
| Hardware store | 16 | — |
| Shopping other | 16 | 26 years |
| Health and medical | 15 | — |
| Pharmacies and drug stores | 15 | 40 years |
| Electronics stores | 14 | — |
| Car repair | 14 | — |
| Beauty salons | 14 | — |
| Cemeteries and crematoriums | 13 | — |
Seia Facts
| Area | 2.2 km² |
| Population | 3,733 |
| Male Population | 1,742 (46.7%) |
| Female Population | 1,991 (53.3%) |
| Population change (1975 to 2020) | -34.9% |
| Population change (2000 to 2020) | -22.2% |
| Median Age | 43.3 years (Male: 41.7, Female: 44.8) |
| GDP per capita (PPP) | $29,922 (2022) |
| Area Codes | 238 |
| Neighborhoods | Vila Chã, Vila Branca, Póvoa Velha, Carvalhal da Louça, Folgosa da Madalena |
| Local Time | |
| Timezone | Western European Summer Time |
| Lat & Lng | 40.41510, -7.70859 |
| Postal Codes | 6270, 6274, 6285 |
Map of Seia
Interactive Map
Seia Population
Years 1975 to 2030
| Data | 1975 | 1990 | 2000 | 2015 | 2020 | 2025* | 2030* |
|---|---|---|---|---|---|---|---|
| Population | 5,732 | 5,231 | 4,800 | 3,924 | 3,733 | 3,427 | 3,145 |
| Population Density | 2,620.3 / km² | 2,391.3 / km² | 2,194.3 / km² | 1,793.8 / km² | 1,706.5 / km² | 1,566.6 / km² | 1,437.7 / km² |
* Projected
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up gridSeia Population change from 2000 to 2020
Decrease of 22.2% from year 2000 to 2020
| Location | Change since 1975 | Change since 1990 | Change since 2000 |
|---|---|---|---|
| Seia | -34.9% | -28.6% | -22.2% |
| Guarda District | — | — | — |
| Portugal | — | — | — |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Seia Median Age
Median Age: 43.3 years
| Location | Median Age | Median Age (Female) | Median Age (Male) |
|---|---|---|---|
| Seia | 43.3 yrs | 44.8 yrs | 41.7 yrs |
| Guarda District | 49.6 yrs | 51.4 yrs | 47.6 yrs |
| Portugal | 42 yrs | 43.5 yrs | 40.4 yrs |
Sources: CIESIN (Center for International Earth Science Information Network)
Seia Population Density
Population Density: 1,707 / km²
| Location | Population | Area | Density |
|---|---|---|---|
| Seia | 3,733 | 2.188 km² | 1,707 / km² |
| Guarda District | 150,589 | 5,518.8 km² | 27.3 / km² |
| Portugal | 10.3 million | 92,264.9 km² | 112 / km² |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Seia Historical and Projected Population
Estimated Population from 0 to 2100
Sources:
- JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
- CIESIN (Center for International Earth Science Information Network)
- [Link] Klein Goldewijk, K., Beusen, A., Doelman, J., and Stehfest, E.: Anthropogenic land use estimates for the Holocene – HYDE 3.2, Earth Syst. Sci. Data, 9, 927–953, https://doi.org/10.5194/essd-9-927-2017, 2017.
Area Codes
Percentage Area Codes used by businesses in Seia
Price Distribution
Business distribution by price for Seia
Human Development Index (HDI)
Statistic composite index of life expectancy, education, and per capita income.
Source: [Link] Kummu, M., Taka, M. &Guillaume, J. Gridded global datasets for Gross Domestic Product and Human Development Index over 1990–2015. Sci Data 5, 180004 (2018) doi:10.1038/sdata.2018.4
Seia Gross Domestic Product (GDP)
GDP per capita, PPP (constant 2017 international $)
| Data | 1990 | 1995 | 2000 | 2005 | 2010 | 2015 | 2020 | 2022 |
|---|---|---|---|---|---|---|---|---|
| GDP per capita | $18,017 | $18,018 | $22,035 | $22,703 | $22,648 | $23,378 | $28,300 | $29,922 |
| Total GDP | $622.1M | $588.4M | $698.4M | $694.6M | $651.6M | $604.3M | $673M | $688.8M |
Source: [Link] Kummu, M., Kosonen, M. & Masoumzadeh Sayyar, S. Downscaled gridded global dataset for gross domestic product (GDP) per capita PPP over 1990–2022. Sci Data 12, 178 (2025) doi:10.1038/s41597-025-04487-x
Seia CO2 Emissions
Carbon Dioxide (CO2) Emissions Per Capita in Tonnes Per Year
| Location | CO2 Emissions | CO2 Emissions Per Capita | CO2 Emissions Intensity |
|---|---|---|---|
| Seia | 21,443 tn | 5.74 tn | 9,802.4 tons/km² |
| Guarda District | 893,422 tn | 5.93 tn | 161.9 tons/km² |
| Portugal | 63,833,570 tn | 6.2 tn | 691.9 tons/km² |
Sources: [Link] Moran, D., Kanemoto K; Jiborn, M., Wood, R., Többen, J., and Seto, K.C. (2018) Carbon footprints of 13,000 cities. Environmental Research Letters DOI: 10.1088/1748-9326/aac72a
Seia CO2 Emissions
| 2013 CO2 emissions (tonnes/year) | 21,443 tn |
| 2013 CO2 emissions (tonnes/year) per capita | 5.74 tn |
| 2013 CO2 emissions intensity (tonnes/km²/year) | 9,802.4 tons/km² |
Natural Hazards Risk
Relative risk out of 10
| Hazard | Risk Level |
|---|---|
| Flood | Medium (4) |
| Earthquake | Medium (4) |
* Risk, particularly concerning flood or landslide, may not be for the entire area.
Sources:
- Dilley, M., R.S. Chen, U. Deichmann, A.L. Lerner-Lam, M. Arnold, J. Agwe, P. Buys, O. Kjekstad, B. Lyon, and G. Yetman. 2005. Natural Disaster Hotspots: A Global Risk Analysis. Washington, D.C.: World Bank. https://doi.org/10.1596/0-8213-5930-4.
- Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University. 2005. Global Flood Hazard Frequency and Distribution. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4668B3D.
- Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University. 2005. Global Earthquake Hazard Distribution - Peak Ground Acceleration. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4BZ63ZS.
Recent Nearby Earthquakes
Magnitude 3.0 and greater
| Date▼ | Time↕ | Magnitude↕ | Distance↕ | Depth↕ | Location↕ | Link |
|---|---|---|---|---|---|---|
| 10/31/08 | 7:39 PM | 3.2 | 57.6 km | 10,700 m | Portugal | usgs.gov |
| 12/1/05 | 8:02 PM | 3.9 | 86.3 km | 7,000 m | Portugal | usgs.gov |
| 4/10/01 | 2:48 PM | 3.7 | 99 km | 10,000 m | Portugal | usgs.gov |
| 8/20/98 | 1:10 AM | 3.1 | 65 km | 10,900 m | Portugal | usgs.gov |
| 8/20/98 | 12:35 AM | 3.8 | 64.1 km | 11,100 m | Portugal | usgs.gov |
| 8/18/98 | 11:10 AM | 3.5 | 65.3 km | 8,300 m | Portugal | usgs.gov |
| 5/6/98 | 4:19 AM | 3 | 19.2 km | 2,100 m | Portugal | usgs.gov |
| 6/13/97 | 12:17 AM | 3.2 | 91.2 km | 10,000 m | Portugal | usgs.gov |
| 4/23/97 | 9:07 AM | 3.2 | 94.9 km | 10,000 m | Portugal | usgs.gov |
| 12/31/96 | 5:44 PM | 3.5 | 57.3 km | 10,000 m | Portugal | usgs.gov |
Source: U.S. Geological Survey (USGS)
Seia
Seia (Portuguese pronunciation: [ˈsɐjɐ]) is a municipality in Guarda District in Portugal. The population in 2011 was 24,702, in an area of 435.69 km². Its urban population is about 7,000. Seia was elevated to city status on July 3, 1986. municipali..
Seia Wikipedia Page
About Our Data
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