Our Data Sources
We use real, publicly available demographic data from official government agencies. Here's exactly where our numbers come from.
How We Calculate
Our calculator applies your filters sequentially to the adult population of your selected region. Each filter reduces the pool based on the percentage of people who meet that criterion.
Important: When cross-tabulated data isn't available (e.g., height by income), we apply filters independently. This assumes independence between variables, which may not perfectly reflect reality but provides a reasonable estimate.
The Preference Strictness Score is separate from the statistical probability and reflects subjective criteria that can't be measured with census data.
Independence Assumptions
- • US & Canada: Education-Income joint distribution available
- • UK, Australia, Europe: No joint distributions; variables assumed independent
- • All regions: Height and income assumed independent (no joint data)
Ethnicity Data Methodology
Ethnicity data availability and categorization varies significantly by region. Here's how we handle it:
- US & Canada: Direct race/ethnicity questions in census surveys
- UK: Census 2021 includes ethnic group question with Arab category
- Australia: Derived from ancestry data, not direct race question
- Europe: Most EU countries do not collect race data; estimates only
When ethnicity data is estimated or unavailable, we flag it with "Limited" coverage and show a warning in your results.
Source Classification
Limitations & Disclaimers
- • Data is from the most recent available sources but may be 1-3 years old
- • We assume independence between variables when cross-tab data isn't available
- • Geographic filters use population proportions as approximations
- • Results are estimates for entertainment purposes, not guarantees
- • Individual preferences and compatibility factors are not captured in census data
🇺🇸United States
Age Distribution
American Community Survey (ACS) 1-Year Estimates
Source: U.S. Census Bureau
Income Distribution
American Community Survey (ACS) 1-Year Estimates
Source: U.S. Census Bureau
Education Distribution
American Community Survey (ACS) 1-Year PUMS
Source: U.S. Census Bureau
Joint distribution with income derived from PUMS microdata
Employment Status
American Community Survey (ACS) 1-Year Estimates
Source: U.S. Census Bureau
Height & BMI Data
National Health and Nutrition Examination Survey (NHANES)
Source: Centers for Disease Control and Prevention (CDC)
Height physically measured by trained health professionals
Marital Status
American Community Survey (ACS) 1-Year Estimates
Source: U.S. Census Bureau
Obesity Rates
National Health and Nutrition Examination Survey (NHANES)
Source: Centers for Disease Control and Prevention (CDC)
BMI calculated from measured height and weight
State Populations
Population Estimates Program
Source: U.S. Census Bureau
Ethnicity Distribution
American Community Survey (ACS) 1-Year Estimates
Source: U.S. Census Bureau
Middle Eastern estimated from ancestry data (ACS Table B04006)
Ethnicity Mapping: Middle Eastern estimated from ancestry data (ACS Table B04006)
🇨🇦Canada
Age Distribution
Census Profile, 2021 Census
Source: Statistics Canada
Income Distribution
Income of individuals by age group, sex and income source
Source: Statistics Canada
Education Distribution
Census of Population PUMF
Source: Statistics Canada
Joint distribution with income derived from PUMF microdata
Employment Status
Labour Force Survey
Source: Statistics Canada
Height Data
Canadian Health Measures Survey (CHMS)
Source: Statistics Canada
Height physically measured by trained health professionals
Marital Status
Census Profile, 2021 Census
Source: Statistics Canada
Obesity Rates
Canadian Health Measures Survey (CHMS)
Source: Statistics Canada
BMI calculated from measured height and weight
Province Populations
Census Profile, 2021 Census
Source: Statistics Canada
Ethnicity Distribution
Census 2021 - Visible Minority
Source: Statistics Canada
Based on visible minority categories. Middle Eastern derived from Arab/West Asian.
Ethnicity Mapping: Based on Statistics Canada visible minority categories
🇬🇧United Kingdom
Age Distribution
Census 2021
Source: Office for National Statistics
Income Distribution
Annual Survey of Hours and Earnings (ASHE)
Source: Office for National Statistics
Education Distribution
Census 2021
Source: Office for National Statistics
Limited joint distribution data - using marginal multiplication
Employment Status
Labour Force Survey
Source: Office for National Statistics
Height Data
Health Survey for England
Source: NHS Digital
Height physically measured by trained health professionals
Marital Status
Census 2021
Source: Office for National Statistics
Obesity Rates
Health Survey for England
Source: NHS Digital
BMI calculated from measured height and weight
Region Populations
Census 2021
Source: Office for National Statistics
Ethnicity Distribution
Census 2021
Source: Office for National Statistics
Includes Arab category in Census 2021
Ethnicity Mapping: Census 2021 includes Arab category. Full ethnicity support.
🇦🇺Australia
Age Distribution
Census of Population and Housing
Source: Australian Bureau of Statistics
Income Distribution
Survey of Income and Housing
Source: Australian Bureau of Statistics
Education Distribution
Census of Population and Housing
Source: Australian Bureau of Statistics
Limited joint distribution data - using marginal multiplication
Employment Status
Labour Force Survey
Source: Australian Bureau of Statistics
Height Data
Australian Health Survey
Source: Australian Bureau of Statistics
Height physically measured by trained health professionals
Marital Status
Census of Population and Housing
Source: Australian Bureau of Statistics
Obesity Rates
Australian Health Survey
Source: Australian Bureau of Statistics
BMI calculated from measured height and weight
State Populations
Census of Population and Housing
Source: Australian Bureau of Statistics
Ethnicity Distribution
Census of Population and Housing - Ancestry
Source: Australian Bureau of Statistics
Derived from ancestry data, not direct race question. All values estimated.
Ethnicity Mapping: Derived from ancestry data, not direct race question. All values estimated.
🇪🇺Europe
Age Distribution
Population by age group
Source: Eurostat
Income Distribution
EU Statistics on Income and Living Conditions (EU-SILC)
Source: Eurostat
Primary official EU income source. Public aggregates only - microdata access restricted.
Education Distribution
Population by educational attainment level
Source: Eurostat
No joint distribution data available - using marginal multiplication
Employment Status
EU Labour Force Survey (EU-LFS)
Source: Eurostat
Primary employment/education source. Public aggregates used.
Height Data
European Health Interview Survey (EHIS)
Source: Eurostat
Mixed measured/self-reported data across countries
Marital Status
Population by marital status
Source: Eurostat
Obesity Rates
European Health Interview Survey (EHIS)
Source: Eurostat
Self-reported BMI - likely underestimates true obesity rates
Sub-region Populations
Population on 1 January
Source: Eurostat
Ethnicity Distribution
Migration and migrant population statistics
Source: Eurostat
ESTIMATED: Most EU countries do not collect race/ethnicity data. Values derived from migration and country of birth statistics. Country-specific mapping not available.
Ethnicity Mapping: ESTIMATED: Most EU countries do not collect race/ethnicity data. Values derived from migration statistics.
🇦🇪United Arab Emirates
Age Distribution
World Population Prospects
Source: UN Population Division estimates
Estimated from UN and World Bank data. UAE does not publish detailed census.
Income Distribution
WDI
Source: World Bank / UAE Statistics Centre estimates
Income data is estimated. Actual distribution varies significantly by nationality.
Education Distribution
UIS
Source: UNESCO / World Bank estimates
Estimated from UNESCO education statistics.
Employment Status
ILOSTAT
Source: ILO / UAE Statistics estimates
Labor force participation varies significantly by nationality and gender.
Height Data
NCD-RisC
Source: NCD-RisC global height data
Height data uses Middle East regional averages.
Marital Status
FCSA
Source: UAE Statistics estimates
Estimated from available regional data.
Obesity Rates
GHO
Source: WHO Global Health Observatory
WHO estimates for UAE.
Emirate Populations
FCSA Census
Source: UAE Federal Competitiveness and Statistics Authority
Official emirate population estimates.
Ethnicity Distribution
Multiple
Source: Estimated from multiple sources
Ethnicity data is estimated. UAE is ~90% expatriate with highly diverse origins. Official ethnic census data is not publicly available.
Ethnicity Mapping: ESTIMATED: UAE does not publish detailed demographic breakdowns. Values derived from population estimates.
All data is publicly available and free to access. We do not modify or alter the source data.