--- license: other license_name: public-domain license_link: https://www.bls.gov/opub/copyright-information.htm pretty_name: QCEW 2025 Annual Employment and Wages tags: - qcew - bls - employment - wages - naics - labor - duckdb size_categories: - 1M '999' AND annual_avg_emplvl > 0 ORDER BY annual_avg_emplvl DESC, area_fips LIMIT 20 """).show() con.close() ``` ### R with DBI and duckdb Install the R dependencies once: `install.packages(c("DBI", "duckdb"))`. ```r library(DBI) con <- dbConnect(duckdb::duckdb(config = list(memory_limit = "128MiB", threads = "1", max_temp_directory_size = "0B"))) dbExecute(con, "INSTALL httpfs") dbExecute(con, "LOAD httpfs") dbExecute(con, "ATTACH 'https://huggingface.co/datasets/Nason/qcew-database/resolve/334c467dba413928233fb1d8cd1c0ff8de5c0105/qcew.duckdb' AS qcew (READ_ONLY)") dbGetQuery(con, "SELECT area_fips, area_title, annual_avg_emplvl, avg_annual_pay FROM qcew.annual WHERE agglvl_code = '55' AND own_code = '5' AND industry_code = '621' ORDER BY annual_avg_emplvl DESC NULLS LAST, area_fips") dbDisconnect(con, shutdown = TRUE) ``` In the tested R DuckDB 1.5.5 configuration, BIGINT and DECIMAL results are exposed as doubles. Employment and wage integers here are below 2^53 and exact; location quotients and percentage changes may be approximate in R although the stored DECIMAL values are exact. ### datapond package Install or upgrade the Python client with `python -m pip install --upgrade datapond`, or install the released R client from [CRAN](https://cran.r-project.org/package=datapond) with `install.packages("datapond")`. Remote examples are tested with Python datapond 0.1.5 (DuckDB 1.5.4) and CRAN R datapond 0.1.0 (DuckDB 1.5.5); older DuckDB reader versions are not verified here. R 0.1.1 is a separate development version, not the CRAN release. The examples below use the public default catalog. For limits set before attachment, use the direct DuckDB examples above; package examples here set limits immediately after connecting: ```python import datapond print(datapond.list()) datapond.describe('qcew', table='annual_raw') con = datapond.connect('qcew') con.execute("SET memory_limit='128MiB'; SET threads=1; SET max_temp_directory_size='0B'") con.sql("SELECT annual_avg_emplvl, total_annual_wages FROM annual WHERE area_fips = 'US000' AND own_code = '0' AND industry_code = '10' AND agglvl_code = '10'").show() con.close() ``` ```r library(datapond) dp_list() con <- dp_connect('qcew') DBI::dbExecute(con, "SET memory_limit='128MiB'; SET threads=1; SET max_temp_directory_size='0B'") dp_describe(con, table = 'annual_raw') DBI::dbGetQuery(con, "SELECT annual_avg_emplvl, total_annual_wages FROM annual WHERE area_fips = 'US000' AND own_code = '0' AND industry_code = '10' AND agglvl_code = '10'") dp_disconnect(con) ``` For repeated scans, download once and connect locally: ```python import datapond datapond.download('qcew') con = datapond.connect('qcew', local=True) con.sql("SELECT annual_avg_emplvl, total_annual_wages FROM annual WHERE area_fips = 'US000' AND own_code = '0' AND industry_code = '10' AND agglvl_code = '10'").show() con.close() ``` ```r library(datapond) dp_download('qcew') con <- dp_connect('qcew', local = TRUE) DBI::dbGetQuery(con, "SELECT annual_avg_emplvl, total_annual_wages FROM annual WHERE area_fips = 'US000' AND own_code = '0' AND industry_code = '10' AND agglvl_code = '10'") dp_disconnect(con) ``` Verify the recorded artifact SHA-256 after downloading. In Python datapond 0.1.5 as well as 0.1.1, the optional `huggingface_hub` download path follows the repository default branch rather than the pinned URL. For an exact-version copy, download the immutable URL shown above and verify its checksum; see [consumer verification](https://github.com/ian-nason/qcew-database/blob/main/docs/CONSUMERS.md) for the tested configuration. Default-catalog discovery and representative remote queries were verified after the registry merge. Earlier full-download checks used an isolated candidate registry. See [consumer verification](https://github.com/ian-nason/qcew-database/blob/main/docs/CONSUMERS.md) for exact client versions, paths, resource limits and download behavior. The direct URL examples above work independently of the catalog. The SQL examples below use the `qcew` catalog alias from the direct-URL quick start. ## Tables One annual data row is one area × ownership group × industry × aggregation level × size class for 2025. These rows include overlapping totals and detail; choose one level before summing. Start with the `annual` view so suppressed measures become NULL. | Table | Description | Rows | Columns | |---|---|---:|---:| | `annual_raw` | 2025 annual QCEW rows preserving all 38 source fields, numeric placeholders and disclosure flags. Mixed nested geographies, industries and ownership totals; do not sum unfiltered | 3,089,813 | 38 | | `areas` | Distinct exact area code/title pairs from the pinned 2025 BLS by-area archive | 4,451 | 2 | | `industries` | Distinct exact industry code/title pairs from the pinned archive | 2,159 | 2 | | `aggregation_levels` | Distinct exact aggregation-level code/title pairs | 36 | 2 | | `ownerships` | Distinct exact ownership code/title pairs | 7 | 2 | | `size_classes` | Code 0, all establishment sizes | 1 | 2 | The raw key is `(area_fips, own_code, industry_code, agglvl_code, size_code, year, qtr)`. All key fields are text, including leading-zero FIPS codes; `year='2025'`, `qtr='A'` (annual, not a fifth quarter), `size_code='0'`. Reference tables cover codes used in this snapshot, not a historical code list; every code had one exact title. `_metadata` has one row per data table; `_columns` carries column definitions. ## Pre-built Views | View | What it does | |---|---| | `annual` | `annual_raw` with the full key, five labels joined through the unique dictionaries, and the three disclosure flags applied independently | In `annual`, `disclosure_code='N'` sets employment, wages, contributions, weekly wage and annual pay to NULL; `lq_disclosure_code='N'` nulls the six location quotients; `oty_disclosure_code='N'` nulls the over-the-year changes. The four establishment measures (`annual_avg_estabs`, `lq_annual_avg_estabs`, `oty_annual_avg_estabs_chg`, `oty_annual_avg_estabs_pct_chg`) are always retained as published. `annual_raw` keeps every source value, including placeholder zeroes on suppressed rows. The view is not counted in the row and table totals above. ## Example Queries County disclosure coverage for private health care and social assistance, including valid establishment counts on suppressed rows: ```sql SELECT disclosure_code, count(*) AS source_cells, count(annual_avg_emplvl) AS published_employment_cells, sum(annual_avg_estabs) AS published_establishments_rounded FROM qcew.annual WHERE agglvl_code = '74' AND own_code = '5' AND industry_code = '62' AND right(area_fips, 3) <> '999' GROUP BY disclosure_code ORDER BY disclosure_code; ``` State private ambulatory health care (NAICS 621) with published year-over-year change and its own flag: ```sql SELECT area_fips, area_title, annual_avg_emplvl, avg_annual_pay, oty_annual_avg_emplvl_pct_chg, oty_disclosure_code FROM qcew.annual WHERE agglvl_code = '55' AND own_code = '5' AND industry_code = '621' ORDER BY annual_avg_emplvl DESC NULLS LAST, area_fips; ``` Compare two disjoint subsectors after fixing the grain to one row per county and industry: ```sql WITH selected AS ( SELECT area_fips, area_title, industry_code, annual_avg_emplvl, avg_annual_pay FROM qcew.annual WHERE agglvl_code = '75' AND own_code = '5' AND industry_code IN ('621', '622') AND right(area_fips, 3) <> '999' ) SELECT a.area_fips, a.area_title, a.annual_avg_emplvl AS ambulatory_jobs, h.annual_avg_emplvl AS hospital_jobs, a.avg_annual_pay AS ambulatory_pay, h.avg_annual_pay AS hospital_pay FROM selected a JOIN selected h ON a.area_fips = h.area_fips WHERE a.industry_code = '621' AND h.industry_code = '622' ORDER BY a.area_fips LIMIT 20; ``` The full set is in [examples.sql](https://github.com/ian-nason/qcew-database/blob/main/examples.sql); saved results are bound to the artifact hash. ## Researcher Caveats 1. **Suppression flags are independent and partial.** Three flags (`disclosure_code`, `lq_disclosure_code`, `oty_disclosure_code`) each govern their own measures. There are 1,860,359 suppressed level rows, 1,872,172 suppressed quotient rows and 1,937,791 suppressed change rows. Suppressed rows still carry valid establishment counts. Never read a suppressed zero as zero employment or pay. 2. **Suppressed cells are inside published totals.** Summing disclosed detail gives an incomplete total; the view does not estimate or back out suppressed values. Report how many eligible cells have published values ([BLS disclosure note](https://www.bls.gov/cew/publications/employment-and-wages-annual-averages/2025/home.htm#disclosure-restrictions)). 3. **Rows overlap; choose one level.** National, state, county, metro and combined-area rows overlap, industry totals nest, and ownership 0 (total), 8 (total government) and 9 (UI covered excluding federal) overlap sectors 1, 2, 3 and 5. Filter on `agglvl_code` (for example 74 county/sector/ownership, 75 county/3-digit, 55 state/3-digit), not on code length. 4. **Geography moves.** Connecticut uses planning-region codes from 2024 data; codes ending `999` are unallocated. Check `areas` before fixing a study universe. 5. **Industry is 2022 NAICS.** `62` is health care and social assistance; `621` ambulatory care; `622` hospitals. Do not splice historical series without checking classification changes. 6. **Employment counts covered jobs, not people.** A worker with two covered employers counts twice; the self-employed and other uncovered groups are absent. Annual employment averages 12 monthly levels; establishments average four quarters; rounding can break exact additivity. 7. **Pay is a nominal ratio.** Average annual and weekly pay are not hourly wages and not additive; do not average county pay to estimate national pay or build weighted aggregates where components are suppressed. 8. **Changes are published, not computed.** Over-the-year fields come from BLS and reflect revisions, reclassification and coverage changes; they are not causal effects. There is no separate 2024 table. 9. **Published zeros can be structural.** Some taxable-wage and contribution fields do not apply to particular ownerships, so a zero is not necessarily economic absence. 10. **Source anomalies remain visible.** DC codes 11000 and 11001 both carry “District of Columbia, not unknown”. Los Angeles County’s private health care/social assistance row has 287,445 establishments and 859,824 jobs; this snapshot does not establish why the establishment count is unusually large. ## Data Source and Version Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2025 annual singlefile, acquired 2026-10-18. Pinned source ZIP: 62,799,396 bytes, SHA-256 `94ebbc589b1b500671c1fd507e2589a9eeb24dcd30eb07f1ce37b0018643f865`; labels derived from the official 2025 annual-by-area ZIP (114,997,862 bytes). Both archives were last modified by BLS on August 21, 2026. The national row reports 155,732,363 jobs and $12,259,226,899,972 in wages. BLS may revise annual files; this is the exact acquired snapshot, with no automatic refresh promised. Artifact: `qcew.duckdb`, 195,571,712 bytes, SHA-256 `89bf1cef54f42f821965df6e9079b24fc7c4c0c86046fadc98e6cedf9ebd8a1d`, dataset commit `334c467dba413928233fb1d8cd1c0ff8de5c0105`. ## License and Attribution BLS data are public domain; BLS requests source attribution ([BLS copyright information](https://www.bls.gov/opub/copyright-information.htm)). Cite: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2025 annual, acquisition date and artifact hash. This derivative changes representation, adds dictionaries, metadata and the `annual` view, and preserves all source values in `annual_raw`. No BLS endorsement is implied. ## GitHub, Dictionary and Website [Detailed researcher guide](https://github.com/ian-nason/qcew-database/blob/main/docs/RESEARCHER-GUIDE.md) · [Build and update instructions](https://github.com/ian-nason/qcew-database/blob/main/docs/REPRODUCE.md) · [Verified publication](https://github.com/ian-nason/qcew-database/blob/main/PUBLICATION.md) - Source, build scripts, tests and evidence: [github.com/ian-nason/qcew-database](https://github.com/ian-nason/qcew-database) - Column dictionary (all 48 columns, source headers, types, NULL shares, join hints): [DICTIONARY.md](https://github.com/ian-nason/qcew-database/blob/main/DICTIONARY.md); BLS [annual layout](https://www.bls.gov/cew/about-data/downloadable-file-layouts/annual/naics-based-annual-layout.htm) - Catalog: [datapond registry](https://github.com/datapond-db/registry); `qcew` is included in the public catalog and on the [datapond website](https://datapond-db.github.io/website/). ## Changelog ### 2026-10-18 — Documentation refresh - Added Python/R quick starts, table descriptions and column counts, view guidance, navigation, and clearer researcher caveats. - Database bytes, schema, source locks and validated query results are unchanged. Catalog integration was pending at this documentation checkpoint; it is now complete. ### 2026-10-18 — Initial release - QCEW 2025 annual: 3,096,467 rows across 6 tables (48 columns) and the `annual` view. Artifact 195,571,712 bytes, SHA-256 `89bf1cef…edbf8a1d`, commit `334c467d`. - Every typed cell verified against an independent read of the pinned source ZIP; disclosure NULLs checked against their own flags; public immutable URL, HTTP range requests and the installed Python and R clients tested after upload. - Registry entry initially opened as a draft pull request; later merged after integration review.