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: September 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)	34,538	202,436	3,773	142,653	63,542	8,587	All HABS Documentation
Historic American Engineering Record (HAER)	10,743	121,964	2,134	116,268	7,348	2,762	All HAER Documentation
Historic American Landscapes Survey (HALS)	1,080	8,086	291	16,397	1,381	242	All HALS Documentation
Totals:	46,361	332,486	6,198	275,318	72,271	11,591	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: September 2025