README.md

metadata

license: other
license_name: gus-attribution
license_details: >-
  Source data from Statistics Poland (GUS) Local Data Bank (Bank Danych
  Lokalnych), bdl.stat.gov.pl. GUS permits reuse of published data with
  attribution to the source. This repackaging adds no additional restrictions.
language:
  - pl
pretty_name: GUS BDL — Polish Local Data Bank (full local extract)
size_categories:
  - 1B<n<10B
tags:
  - poland
  - official-statistics
  - regional-data
  - economics
  - demographics
  - panel-data
configs:
  - config_name: gminy
    data_files: facts_gminy/part-*.parquet
  - config_name: powiaty
    data_files: facts_powiaty/part-*.parquet
  - config_name: podregiony
    data_files: facts_podregiony.parquet
  - config_name: wojewodztwa
    data_files: facts_wojewodztwa.parquet
  - config_name: makroregiony
    data_files: facts_makroregiony.parquet
  - config_name: codebook
    data_files: codebook.parquet
  - config_name: units
    data_files: units.parquet

GUS BDL — Polish Local Data Bank, full local extract

Complete extract of the GUS Bank Danych Lokalnych (Local Data Bank of Statistics Poland) via its public API: ~1.26 billion observations covering every published variable at every administrative level from gmina (municipality) upward, years 1995–2024 where available.

Files

File	Unit level	Units	Variables	Rows
facts_gminy/part-*.parquet (16 files)	6 — gminy (municipalities)	4,180	35,631	1,051,816,661
facts_powiaty/part-*.parquet (4 files)	5 — powiaty (counties)	382	63,748	154,585,967
facts_podregiony.parquet	4 — podregiony (subregions)	73	67,962	32,782,913
facts_wojewodztwa.parquet	2 — województwa (voivodeships)	16	171,845	17,094,800
facts_makroregiony.parquet	1 — makroregiony (macroregions)	7	171,845	7,478,975
codebook.parquet	—		171,912	variable descriptions
units.parquet	—	4,658		unit directory

No level 0 (national), level 3 (regiony), or level 7 (localities) data is included.

Gminy and powiaty are split into part files by variable_id range so remote readers fetch only the small file a query needs; manifest.json maps each part to its variable range. The other levels are single files.

Schema

Fact tables: variable_id (int), unitId (12-char zero-padded GUS unit code, string), unitName, unitLevel, year, value (double), attr_id (GUS attribute flag).

codebook.parquet maps variable_id to subject codes, human-readable Polish descriptions (variable_full_name), dimension breakdowns (n1–n5, e.g. sex, age group), and measure units. units.parquet lists each territorial unit with its level, voivodeship TERYT prefix, and first/last observed year.

Gminy counts exceed the ~2,477 actual municipalities because urban-rural gminy appear as up to three units (combined, town, rural part).

Querying without downloading

DuckDB reads these files in place over HTTP with predicate pushdown:

SELECT f.year, f.value, c.variable_full_name
FROM read_parquet('hf://datasets/fmbeilin/gus-bdl/facts_gminy/part-*.parquet') f
JOIN read_parquet('hf://datasets/fmbeilin/gus-bdl/codebook.parquet') c
  USING (variable_id)
WHERE f.unitId = '011212001011'   -- gmina Bochnia
  AND c.subjectId = 'P1312';

Python users can also load slices via pandas.read_parquet("hf://datasets/fmbeilin/gus-bdl/facts_wojewodztwa.parquet") or the datasets library using the configs above.

Provenance

Extracted from the official BDL API (bdl.stat.gov.pl/api/v1) December 2025 – February 2026. Values are as published by GUS; no cleaning, imputation, or revision beyond type normalisation (unit IDs zero-padded to the canonical 12-character form). Extraction and packaging pipeline: github.com/fmbeilin/bdl-gus.

Attribution: data source — Główny Urząd Statystyczny (Statistics Poland), Bank Danych Lokalnych, bdl.stat.gov.pl.