{ "schemaVersion": 1, "name": "2020 Census ZCTA boundary study: 50 states and District of Columbia", "relationshipVintage": "2020", "scope": { "name": "50 states and District of Columbia", "stateAbbrs": [ "AK", "AL", "AR", "AZ", "CA", "CO", "CT", "DC", "DE", "FL", "GA", "HI", "IA", "ID", "IL", "IN", "KS", "KY", "LA", "MA", "MD", "ME", "MI", "MN", "MO", "MS", "MT", "NC", "ND", "NE", "NH", "NJ", "NM", "NV", "NY", "OH", "OK", "OR", "PA", "RI", "SC", "SD", "TN", "TX", "UT", "VA", "VT", "WA", "WI", "WV", "WY" ], "nationalUnit": "Distinct selected 2020 Census ZCTA", "stateTotalsAdditive": false }, "sources": { "counties": { "filename": "tab20_zcta520_county20_natl.txt", "url": "https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_county20_natl.txt", "sha256": "3ed41278d637dc249e0323306f68be8a6c234e3090f4de88ef328dee71aeaaaf" }, "places": { "filename": "tab20_zcta520_place20_natl.txt", "url": "https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_place20_natl.txt", "sha256": "698a5dad71ed419411677d0ffd8ecd9331067f59c472cdd239b92c12f698285d" } }, "definitions": { "includedZcta": "A distinct five-digit 2020 Census ZCTA with a positive land intersection with a county/equivalent in the 50 states or District of Columbia.", "positiveLand": "AREALAND_PART > 0 square meters. Zero-land and water-only intersections do not count. No minimum land-size threshold is applied.", "counties": "Distinct county/equivalent GEOIDs with positive land intersection anywhere in the full selected ZCTA.", "namedPlaces": "Distinct Census place GEOIDs with positive land intersection anywhere in the full selected ZCTA. Includes incorporated and statistical places; unnamed/unincorporated remainder is not a named place.", "states": "Distinct state identifiers from the first two digits of positive-land county/equivalent GEOIDs.", "multipleCounties": "Number of selected ZCTAs whose full county/equivalent set contains at least two distinct GEOIDs.", "crossState": "Number of selected ZCTAs whose full state set contains at least two distinct state identifiers.", "multiplePlaces": "Number of selected ZCTAs whose full named-place set contains at least two distinct GEOIDs.", "stateMetrics": "Each state counts a selected ZCTA once if it has positive land in that state. All flags describe the full ZCTA, including portions outside that state. State rows overlap and must not be added to obtain national totals." }, "limitations": [ "ZCTAs are 2020 Census statistical areas, not current USPS ZIP Codes, mailing-city definitions or postal validation.", "County/equivalent and place names and boundaries are from 2020; later changes, including Connecticut planning regions, are not substituted.", "Any positive land intersection counts, including tiny slivers. It does not establish a meaningful residential share, a household location or a provider service area.", "Named Census places include statistical places. A ZCTA may also contain land outside any named Census place.", "Postal-only ZIP Codes absent from this statistical source are outside the study, not evidence of absent internet service.", "The study contains no provider coverage, technology, current price, independent-network count, availability, orderability or quality ranking.", "Per-state figures overlap for cross-state ZCTAs; every reported flag concerns the full ZCTA, not only its portion within that state." ], "national": { "zctas": 33642, "multipleCounties": 10105, "crossState": 137, "multiplePlaces": 11711 }, "states": { "AK": { "name": "Alaska", "zctas": 245, "multipleCounties": 12, "crossState": 0, "multiplePlaces": 62 }, "AL": { "name": "Alabama", "zctas": 658, "multipleCounties": 254, "crossState": 3, "multiplePlaces": 328 }, "AR": { "name": "Arkansas", "zctas": 620, "multipleCounties": 242, "crossState": 10, "multiplePlaces": 224 }, "AZ": { "name": "Arizona", "zctas": 420, "multipleCounties": 49, "crossState": 7, "multiplePlaces": 228 }, "CA": { "name": "California", "zctas": 1808, "multipleCounties": 174, "crossState": 6, "multiplePlaces": 925 }, "CO": { "name": "Colorado", "zctas": 530, "multipleCounties": 161, "crossState": 7, "multiplePlaces": 208 }, "CT": { "name": "Connecticut", "zctas": 288, "multipleCounties": 11, "crossState": 0, "multiplePlaces": 62 }, "DC": { "name": "District of Columbia", "zctas": 57, "multipleCounties": 0, "crossState": 0, "multiplePlaces": 0 }, "DE": { "name": "Delaware", "zctas": 70, "multipleCounties": 8, "crossState": 3, "multiplePlaces": 37 }, "FL": { "name": "Florida", "zctas": 1013, "multipleCounties": 137, "crossState": 0, "multiplePlaces": 566 }, "GA": { "name": "Georgia", "zctas": 752, "multipleCounties": 404, "crossState": 3, "multiplePlaces": 338 }, "HI": { "name": "Hawaii", "zctas": 97, "multipleCounties": 0, "crossState": 0, "multiplePlaces": 50 }, "IA": { "name": "Iowa", "zctas": 972, "multipleCounties": 472, "crossState": 10, "multiplePlaces": 246 }, "ID": { "name": "Idaho", "zctas": 287, "multipleCounties": 92, "crossState": 10, "multiplePlaces": 65 }, "IL": { "name": "Illinois", "zctas": 1397, "multipleCounties": 486, "crossState": 1, "multiplePlaces": 542 }, "IN": { "name": "Indiana", "zctas": 807, "multipleCounties": 359, "crossState": 0, "multiplePlaces": 236 }, "KS": { "name": "Kansas", "zctas": 710, "multipleCounties": 338, "crossState": 8, "multiplePlaces": 173 }, "KY": { "name": "Kentucky", "zctas": 782, "multipleCounties": 295, "crossState": 5, "multiplePlaces": 190 }, "LA": { "name": "Louisiana", "zctas": 540, "multipleCounties": 148, "crossState": 1, "multiplePlaces": 196 }, "MA": { "name": "Massachusetts", "zctas": 540, "multipleCounties": 24, "crossState": 1, "multiplePlaces": 82 }, "MD": { "name": "Maryland", "zctas": 478, "multipleCounties": 82, "crossState": 3, "multiplePlaces": 225 }, "ME": { "name": "Maine", "zctas": 427, "multipleCounties": 17, "crossState": 1, "multiplePlaces": 10 }, "MI": { "name": "Michigan", "zctas": 993, "multipleCounties": 343, "crossState": 1, "multiplePlaces": 205 }, "MN": { "name": "Minnesota", "zctas": 887, "multipleCounties": 364, "crossState": 14, "multiplePlaces": 277 }, "MO": { "name": "Missouri", "zctas": 1040, "multipleCounties": 467, "crossState": 9, "multiplePlaces": 333 }, "MS": { "name": "Mississippi", "zctas": 428, "multipleCounties": 233, "crossState": 3, "multiplePlaces": 147 }, "MT": { "name": "Montana", "zctas": 373, "multipleCounties": 125, "crossState": 8, "multiplePlaces": 136 }, "NC": { "name": "North Carolina", "zctas": 853, "multipleCounties": 329, "crossState": 2, "multiplePlaces": 370 }, "ND": { "name": "North Dakota", "zctas": 400, "multipleCounties": 197, "crossState": 26, "multiplePlaces": 69 }, "NE": { "name": "Nebraska", "zctas": 592, "multipleCounties": 293, "crossState": 19, "multiplePlaces": 111 }, "NH": { "name": "New Hampshire", "zctas": 247, "multipleCounties": 18, "crossState": 1, "multiplePlaces": 14 }, "NJ": { "name": "New Jersey", "zctas": 598, "multipleCounties": 63, "crossState": 0, "multiplePlaces": 252 }, "NM": { "name": "New Mexico", "zctas": 379, "multipleCounties": 82, "crossState": 10, "multiplePlaces": 166 }, "NV": { "name": "Nevada", "zctas": 182, "multipleCounties": 27, "crossState": 8, "multiplePlaces": 77 }, "NY": { "name": "New York", "zctas": 1826, "multipleCounties": 332, "crossState": 0, "multiplePlaces": 491 }, "OH": { "name": "Ohio", "zctas": 1233, "multipleCounties": 464, "crossState": 0, "multiplePlaces": 510 }, "OK": { "name": "Oklahoma", "zctas": 666, "multipleCounties": 277, "crossState": 3, "multiplePlaces": 285 }, "OR": { "name": "Oregon", "zctas": 430, "multipleCounties": 93, "crossState": 5, "multiplePlaces": 160 }, "PA": { "name": "Pennsylvania", "zctas": 1833, "multipleCounties": 361, "crossState": 0, "multiplePlaces": 627 }, "RI": { "name": "Rhode Island", "zctas": 81, "multipleCounties": 3, "crossState": 1, "multiplePlaces": 20 }, "SC": { "name": "South Carolina", "zctas": 424, "multipleCounties": 165, "crossState": 0, "multiplePlaces": 198 }, "SD": { "name": "South Dakota", "zctas": 401, "multipleCounties": 229, "crossState": 41, "multiplePlaces": 131 }, "TN": { "name": "Tennessee", "zctas": 641, "multipleCounties": 318, "crossState": 10, "multiplePlaces": 252 }, "TX": { "name": "Texas", "zctas": 1992, "multipleCounties": 691, "crossState": 6, "multiplePlaces": 775 }, "UT": { "name": "Utah", "zctas": 303, "multipleCounties": 30, "crossState": 8, "multiplePlaces": 139 }, "VA": { "name": "Virginia", "zctas": 907, "multipleCounties": 320, "crossState": 7, "multiplePlaces": 253 }, "VT": { "name": "Vermont", "zctas": 265, "multipleCounties": 39, "crossState": 0, "multiplePlaces": 46 }, "WA": { "name": "Washington", "zctas": 606, "multipleCounties": 86, "crossState": 4, "multiplePlaces": 253 }, "WI": { "name": "Wisconsin", "zctas": 783, "multipleCounties": 318, "crossState": 1, "multiplePlaces": 297 }, "WV": { "name": "West Virginia", "zctas": 741, "multipleCounties": 180, "crossState": 3, "multiplePlaces": 137 }, "WY": { "name": "Wyoming", "zctas": 180, "multipleCounties": 33, "crossState": 8, "multiplePlaces": 54 } }, "examples": { "27263": { "zcta": "27263", "states": [ "NC" ], "counties": [ { "geographyId": "37081", "name": "Guilford County" }, { "geographyId": "37151", "name": "Randolph County" } ], "places": [ { "geographyId": "3701720", "name": "Archdale city" }, { "geographyId": "3731400", "name": "High Point city" }, { "geographyId": "3768400", "name": "Trinity city" } ] }, "28374": { "zcta": "28374", "states": [ "NC" ], "counties": [ { "geographyId": "37125", "name": "Moore County" } ], "places": [ { "geographyId": "3751940", "name": "Pinehurst village" }, { "geographyId": "3763120", "name": "Southern Pines town" }, { "geographyId": "3766980", "name": "Taylortown town" } ] }, "90210": { "zcta": "90210", "states": [ "CA" ], "counties": [ { "geographyId": "06037", "name": "Los Angeles County" } ], "places": [ { "geographyId": "0606308", "name": "Beverly Hills city" }, { "geographyId": "0644000", "name": "Los Angeles city" }, { "geographyId": "0684410", "name": "West Hollywood city" } ] } }, "download": { "path": "/data/zip-boundary-study.csv", "encodingFormat": "text/csv", "charset": "UTF-8", "rowCount": 33642, "sha256": "ff675f23524e80b6f63ca6e639ff57954d19569425162d3e4dfe3ecff0d24772", "columns": [ "zcta_2020", "state_abbrs_json", "state_count", "county_count", "named_place_count", "crosses_state_lines", "county_geographies_json", "named_place_geographies_json" ] } }