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: May 2025

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)	34,368	201,462	3,763	141,099	63,355	8,563	All HABS Documentation
Historic American Engineering Record (HAER)	10,698	121,131	2,133	115,303	7,302	2,748	All HAER Documentation
Historic American Landscapes Survey (HALS)	1,063	7,940	291	15,911	1,349	239	All HALS Documentation
Totals:	46,129	330,533	6,187	272,313	72,006	11,550	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: May 2025