關鍵字 / Keywords: 美國人口普查 ACS 家戶調查 人口統計 十年普查 census demographic population household ACS decennial PEP geography FIPS Bureau vintage variable
Scope: US Census Bureau · api.census.gov dataset registry.
Search the 1,798-endpoint registry (ACS 1-year, ACS 5-year, decennial PL/DHC/SF1, PEP annual, economic censuses, etc.) by keyword + optional vintage + optional dataset-path filter.
Endpoint: https://api.census.gov/data.json (DCAT-shaped catalog)
Args: query: substring match on title + description + c_dataset path (case-insensitive). Empty string matches everything (with vintage / dataset filters still applied). vintage: exact vintage-year filter (e.g. 2022, "2020", 1999). dataset: substring match on the c_dataset path — common values: - "acs5" — ACS 5-year (block group down) - "acs1" — ACS 1-year (geos ≥65k population) - "dec" — decennial (2020 / 2010 / 2000 / 1990) - "pep" — Population Estimates Program (annual) - "ecn" — Economic Census - "cbp" — County Business Patterns - "nonemp" — Nonemployer Statistics limit: max rows returned (default 20, hard cap 200).
Returns dict with results — each row has identifier, title,
description, vintage, dataset_path, base_url,
variables_url, geography_url, examples_url. base_url feeds
us_query_acs / us_query_decennial. License: US Public Domain
(17 USC §105).