# California Homelessness Prediction Challenge — Data

来源：https://www.kaggle.com/competitions/california-homelessness-prediction-challenge/data

本地 Meta Kaggle 快照；不是本次实时页面。

# Dataset Description

# California Homelessness Data Documentation

## Dataset Scale

- **Population Coverage**: +20 million residents across 10 metropolitan areas in California
- **Unique Census Tracts**: ~5,000
- **Geographic Granularity**: ~200 sub-county administrative units
- **Feature Count**: ~200 demographic variables
- **Homeless Population Range**: From less than 0.03% to more than 3% of the local population


## Data Sources

### Census Demographic Data

Census data provides the population denominators needed to calculate homelessness rates, along with detailed demographic characteristics from several key tables:

- **Table B01003 (ACS)**: Total population (5-year estimates)
- **Table B01001 (ACS)**: Detailed age and sex distribution
- **Table B21001 (ACS)**: Veteran status for the civilian population age 18+
- **Table B18101 (ACS)**: Disability status across six functional categories
- **Table B11003 (ACS)**: Family structure and household composition
- **Table B03002 (ACS)**:Race and Hispanic Origin



## Source File Chain of Custody

### 1. Alameda County

**Homelessness Data**
Reporting Agency: EveryOne Home (Alameda County CoC)
Agency URL: https://homelessness.acgov.org/
File URL: https://homelessness.acgov.org/homelessness-assets/docs/reports/2022-Alameda-County-PIT-Report_9.22.22-FINAL-3.pdf
Year: 2022 Point-in-Time Count

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 2. Los Angeles County

**Homelessness Data**
Reporting Agency: Los Angeles Homeless Services Authority (LAHSA)
Agency URL: https://www.lahsa.org/
File URL: https://www.lahsa.org/documents?id=6532-countywide-geography-summary.pdf
Year: 2022 Point-in-Time Count
Note: City Council Districts used for additional detail.

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**Council District Boundaries**
Reporting Agency: Los Angeles County GIS
Agency URL: https://egis-lacounty.hub.arcgis.com/
File URL: https://public.gis.lacounty.gov/public/rest/services/LACounty_Dynamic/Political_Boundaries/MapServer/27
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 3. Orange County

**Homelessness Data**
Reporting Agency: Orange County HMIS
Agency URL: https://ochmis.org/
File URL: https://ochmis.org/wp-content/uploads/2022/05/2022-Pit-Data-Infographic-5.10.2022-Final.pdf
Year: 2022 Point-in-Time Count

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 4. Riverside County

**Homelessness Data**
Reporting Agency: Housing Authority of the County of Riverside
Agency URL: https://harivco.org/
File URL: https://kesq.b-cdn.net/2022/05/2022_Homeless_PITC.pdf
Year: 2022 Point-in-Time Count

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 5. Sacramento County

**Homelessness Data**
Reporting Agency: Sacramento Steps Forward
Agency URL: https://sacramentostepsforward.org/
File URL: https://sacramentostepsforward.org/wp-content/uploads/2022/06/PIT-Report-2022.pdf
Year: 2022 Point-in-Time Count

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 6. San Bernardino County

**Homelessness Data**
Reporting Agency: San Bernardino County
Agency URL: https://main.sbcounty.gov/
File URL: https://www.sbcounty.gov/uploads/sbchp/SBC-2022-Homeless-Count-Report.pdf
Year: 2022 Point-in-Time Count

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 7. San Diego County

**Homelessness Data**
Reporting Agency: Regional Task Force on Homelessness (RTFH)
Agency URL: https://www.rtfhsd.org/
File URL: https://www.rtfhsd.org/wp-content/uploads/2025/01/2022-San-Diego-Region-Cities-Sheltered-and-Unsheltered-Breakdown-FINAL_05182022.pdf
Year: 2022 Point-in-Time Count
Note: 16 cities plus unincorporated region used.

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 8. San Francisco County

**Homelessness Data**
Reporting Agency: SF Department of Homelessness & Supportive Housing (HSH)
Agency URL: https://hsh.sfgov.org/
File URL: https://hsh.archive.sf.gov/wp-content/uploads/2022/08/2022-PIT-Count-Report-San-Francisco-Updated-8.19.22.pdf
Year: 2022 Point-in-Time Count
Note: Supervisor Districts used for additional detail.

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**Supervisorial District Boundaries**
Reporting Agency: SF Department of Elections / DataSF
Agency URL: https://data.sfgov.org/
File URL: https://data.sfgov.org/Geographic-Locations/Supervisorial-Districts-2022/yjzx-k7si
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 9. Santa Clara County

**Homelessness Data**
Reporting Agency: Santa Clara County Continuum of Care
Agency URL: https://www.santaclaracounty.gov/
File URL: https://files.santaclaracounty.gov/exjcpb1571/migrated/2022%20PIT%20Report%20Santa%20Clara%20County.pdf
Year: 2022 Point-in-Time Count

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022

### 10. Sonoma County

**Homelessness Data**
Reporting Agency: Sonoma County Continuum of Care / County of Sonoma
Agency URL: https://sonomacounty.gov/
File URL: https://sonomacounty.gov/Main%20County%20Site/Health%20and%20Human%20Services/Health%20Services/Documents/Homelessness%20Services/Homeless%20Data/County%20of%20Sonoma%202022%20Point-in-Time%20Count%20Results.pdf
Year: 2022 Point-in-Time Count

**ACS Census Data**
Reporting Agency: U.S. Census Bureau
Agency URL: https://www.census.gov
File URL: https://data.census.gov/table/ACSDT5Y2022.B01003
Year: 2018–2022 ACS 5-Year Estimates

**City/Place Boundaries**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/PLACE/tl_2022_06_place.zip
Year: 2022

**Census Tract Shapefiles**
Reporting Agency: U.S. Census Bureau TIGER/Line
Agency URL: https://www.census.gov
File URL: https://www2.census.gov/geo/tiger/TIGER2022/TRACT/tl_2022_06_tract.zip
Year: 2022