---
id: "us_census_sumlev"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["geo", "government"]
country: ["US"]
langs: ["en"]
quality: 75
url: "https://registry.apicrafter.io/datatype/us_census_sumlev"
---

# US Census summary level code (`us_census_sumlev`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Three-digit code of the summary level (SUMLEV) of a row in US Census Bureau data, the kind of geographic area it describes: 010 nation, 020 region, 030 division, 040 state, 050 county, and others for places, tracts and blocks.

- Parent datatype: `category`
- Personal data (PII): no
- Categories: Geographic identifiers (geo), Government related (government)
- Countries: United States (US)
- Languages: English (en)
- Classification: categorical

## Detection

Regular expression (Python `re`):

```
^\d{3}$
```

## Examples

- `040` — State
- `050` — County
- `40` (invalid example) — Leading zero dropped

## Sources

- doc: <https://www.census.gov/programs-surveys/geography/technical-documentation/naming-convention/cartographic-boundary-file/carto-boundary-summary-level.html>

## Quality

Score 75/100. Missing: mapping (Wikidata, Schema.org, ...), translation, detector coverage.

JSON: <https://registry.apicrafter.io/api/v1/datatypes/us_census_sumlev.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/US/geo/us_census_sumlev.yaml>