A municipality-level, monthly dataset of disappearance cases and outcomes in Mexico from the National Registry of Disappeared Persons, 2015-2025.

>132,000 persons are officially registered as disappeared and not located in Mexico, yet the government registry that documents this crisis, the National Registry of Disappeared and Unlocated Persons (Registro Nacional de Personas Desaparecidas y No Localizadas, RNPDNO), provides no public API, no bulk-download facility, and no machine-readable data export. The portal employs session-based authentication and CAPTCHA verification; individual queries return dynamically rendered HTML tables for single municipality-status-date combinations. An original extraction pipeline (Python, requests, BeautifulSoup4) systematically queried the portal across all combinations of 2478 municipalities, four victim-status categories, and monthly date ranges from January 2015 through December 2025. Raw records were processed through a deterministic cleaning pipeline with two-pass geographic normalization against the INEGI municipal geo-code catalog. The dataset is organized into four CSV files by victim-status category: (i) all registered persons (status_id = 0; 57,373 rows); (ii) disappeared and not located (status_id = 7; 34,617 rows); (iii) located alive (status_id = 2; 37,379 rows); (iv) located deceased (status_id = 3; 9936 rows). Each row represents a unique municipality-year-month cell with sex-disaggregated counts. The AGEEML-normalized cvegeo enables direct spatial joins to INEGI cartographic and census data that the portal's free-text municipality strings preclude. Four sentinel geo-codes flag 4141 rows (12,210 persons) with unresolvable geographic information. The complete pipeline and all manual override files are released in an open-source repository.