{"main_topic":"census","sub_topic":"acs","topic":"median_home_value","key":"census/acs/median_home_value","version":"1.0.0","year_min":2020,"year_max":2024,"year_gaps":[],"update_frequency":"annual","detail_levels":["counties","districts","states","tracts"],"default_detail":"counties","path_template":"census/median_home_value/year={year}/{detail}.parquet","grain":["year","county_fips","district_code","tract_geoid"],"title":"Median Home Value (ACS)","summary":"What a typical owner-occupied home is worth in each Georgia community - American Community Survey 5-year median values down to the census-tract level.","description":"Median value of owner-occupied housing units from the American Community Survey 5-year estimates (detailed table B25077), for Georgia at state, county, school district, and census tract geography, vintages 2020-2024. One dollar figure per geography per vintage with its 90 percent margin of error.","source":"U.S. Census Bureau, American Community Survey 5-Year Estimates","source_url":"https://data.census.gov/table/ACSDT5Y2024.B25077?g=040XX00US13","endpoint":"/api/v1/census/median_home_value","columns":[{"name":"year","type":"integer","role":"year","nullable":false,"label":"Year","short_description":"","description":"ACS 5-year vintage END year: 2024 covers the pooled 2020-2024 survey period. Consecutive vintages overlap.","valid_values":null,"example":2024,"unit":null,"value_min":null,"value_max":null,"null_meaning":null,"key_metric_grain_contributor":false,"metric_component":null},{"name":"county_fips","type":"string","role":"fk_county","nullable":true,"label":"County FIPS","short_description":"","description":"5-digit county FIPS code (state 13 + county). Populated only on county-level rows.","valid_values":null,"example":"13121","unit":null,"value_min":null,"value_max":null,"null_meaning":null,"key_metric_grain_contributor":false,"metric_component":null},{"name":"district_code","type":"string","role":"fk_district","nullable":true,"label":"District Code","short_description":"","description":"GCD school district code (FK to the education districts dimension). Populated only on district-level rows - Census unified-school-district estimates mapped onto the ~180 standard districts.","valid_values":null,"example":"660","unit":null,"value_min":null,"value_max":null,"null_meaning":null,"key_metric_grain_contributor":false,"metric_component":null},{"name":"tract_geoid","type":"string","role":"fk_tract","nullable":true,"label":"Tract GEOID","short_description":"","description":"11-digit census tract GEOID (2020 boundaries). Populated only on tract-level rows.","valid_values":null,"example":"13121011100","unit":null,"value_min":null,"value_max":null,"null_meaning":null,"key_metric_grain_contributor":false,"metric_component":null},{"name":"median_home_value","type":"integer","role":"metric","nullable":true,"label":"Median Home Value","short_description":"Median owner-occupied home value.","description":"Median value of owner-occupied housing units, dollars. Censored at the scale ends and preserved as published: 2000001 means $2,000,000 or more; 9999 means $9,999 or less. NULL when the source could not compute a median.","valid_values":null,"example":303300,"unit":"currency","value_min":null,"value_max":null,"null_meaning":null,"key_metric_grain_contributor":false,"metric_component":null},{"name":"median_home_value_moe","type":"integer","role":"metric","nullable":true,"label":"Median Home Value Moe","short_description":"","description":"90 percent margin of error for median_home_value, dollars, as published. Never the headline metric.","valid_values":null,"example":null,"unit":"currency","value_min":null,"value_max":null,"null_meaning":"The source published no margin (annotation sentinel), e.g. for a median it could not compute.","key_metric_grain_contributor":false,"metric_component":null}],"key_metric":"median_home_value","usage":"Star-schema fact table. Join the districts dimension on district_code; the counties dimension on county_fips; the tracts dimension on tract_geoid. Read directly with DuckDB over Parquet.","limitations":"Universe: OWNER-OCCUPIED housing units only - renters' housing is invisible in this measure. Medians never sum or average across geographies. Published medians are censored at the scale ends and preserved as-is (see the jam_values listing on the column): 2000001 means '$2,000,000 or more' and 9999 means '$9,999 or less'. A NULL median means the source could not compute one; this happens only at census-tract grain (about 3 percent of tract medians across 2020-2024, concentrated in tracts with very few owner-occupied units). State, county, and school-district medians publish everywhere. ACS 5-year period estimates: the year column is the vintage END year and each estimate pools five years of survey responses (2024 = 2020-2024). Consecutive vintages share about 80% of their sample, so the series is heavily smoothed - never difference overlapping vintages as if they were annual change. Estimates are survey-based and carry 90% margins of error (the *_moe columns); tract-level margins can be large relative to the estimate. All levels serve vintages 2020-2024 only, on 2020-vintage tract boundaries. State rows have NULL county_fips, district_code, and tract_geoid; county rows carry only county_fips, district rows only district_code, tract rows only tract_geoid. District rows cover the ~180 standard (city/county) districts only: the Census publishes school-district estimates at unified school district geography, which has no codes for charter schools, RESAs, or state agencies, and its few Census-only districts (e.g. the Fort Stewart military district) have no GCD district code and are dropped.","null_semantics":{"suppressed_to_null":true,"zero_is_real":true},"available_years":[2020,2021,2022,2023,2024],"schema_hash":"1fbc1229f45859a6a007279b512374aebc9b5b25432bfea407aa983243e75547","tags":["census","u.s. census bureau, american community survey 5-year estimates","median_home_value"],"granularity_description":"One row per year, county_fips, district_code, tract_geoid (geography columns are NULL at higher aggregation levels).","example_queries":[{"description":"Latest year (2024), counties detail","query":"SELECT * FROM median_home_value WHERE year = 2024 LIMIT 100"},{"description":"District 660 in 2024","query":"SELECT * FROM median_home_value WHERE district_code = '660' AND year = 2024 LIMIT 100"}],"foreign_keys":[{"column":"county_fips","target_object":"counties","target_columns":["county_fips"],"attribute_columns_added":["county_name"],"scope":"global"},{"column":"district_code","target_object":"districts","target_columns":["district_code"],"attribute_columns_added":["district_name","district_census_id","district_type"],"scope":"domain"},{"column":"tract_geoid","target_object":"tracts","target_columns":["tract_geoid"],"attribute_columns_added":["tract_name"],"scope":"global"}],"filters":[{"param":"year","kind":"year_exact","type":"integer","multi_value":false,"enum_enforced":false,"values":null},{"param":"year_min","kind":"year_range","type":"integer","multi_value":false,"enum_enforced":false,"values":null},{"param":"year_max","kind":"year_range","type":"integer","multi_value":false,"enum_enforced":false,"values":null},{"param":"detail","kind":"detail","type":"string","multi_value":false,"enum_enforced":true,"values":["counties","districts","states","tracts"],"default":"counties"},{"param":"district_code","kind":"foreign_key","column":"district_code","type":"string","multi_value":true,"enum_enforced":false,"values":null},{"param":"county_fips","kind":"foreign_key","column":"county_fips","type":"string","multi_value":true,"enum_enforced":false,"values":null},{"param":"tract_geoid","kind":"foreign_key","column":"tract_geoid","type":"string","multi_value":true,"enum_enforced":false,"values":null},{"param":"district_type","kind":"dimension_attribute","dimension":"districts","column":"district_type","type":"string","multi_value":true,"enum_enforced":true,"values":["commission_charter","resa","standard","state_agency","state_charter","state_school","state_special"]}],"filter_hints":[],"values_endpoint":"/api/v1/census/median_home_value/values"}