HABS/HAER/HALS Collection Statistics

New documentation is typically added to the HABS/HAER/HALS Collection on a quarterly basis. This page will be updated accordingly.

Collection Counts by Program

Last updated: June 2026

Program	Surveys	Black & White Photographs (from Large-Format Black & White Negatives)	Color Photographs (from Large-Format Color Transparencies)	History Pages	Measured Drawings (Counted by Sheet)	Field Notes (Counted by Folder)	URL
Historic American Buildings Survey (HABS)	34,737	202,896	3,775	143,687	63,909	8,647	All HABS Documentation
Historic American Engineering Record (HAER)	10,765	122,238	2,134	116,522	7,389	2,767	All HAER Documentation
Historic American Landscapes Survey (HALS)	1,112	8,153	291	16,736	1,442	248	All HALS Documentation
Totals:	46,614	333,287	6,200	276,945	72,740	11,662	Entire Collection

Survey Counts by State/Jurisdiction

HABS/HAER/HALS Survey Count by State or Other Jurisdiction

State or Other Jurisdiction	Survey Count

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Last updated: June 2026