Prime Farmland, and Important Farmland as a whole, decreased by record amounts during the 2002-2004 period. Urbanization was responsible for 60% of farm and grazing land losses.
Urban land expanded by 101,825 acres during the 2004 mapping cycle, with 24% occurring in the San Joaquin Valley. The inland empire counties (Riverside and San Bernardino) and the six-county Sacramento metropolitan area accounted for 23% and 15%, respectively, of the statewide total. Land idling, ecological restoration, rural residential development, and mining operations also effected downward pressure on the agricultural total. Fewer new acres were brought into production to offset losses, resulting in a net decrease of 138,644 acres in irrigated farmland for the period. The decrease in Prime Farmland (78,575 acres) was the largest yet documented in a two-year update since the program's inception.
Complete report (large PDF file, version 6.0--3.3 mb)
Report split and compressed to facilitate download --
Introductory Materials (185 kb): Acknowledgements; Table of Contents
ERRATA Sheet (50 kb): Corrects for computation errors in the 2004 Land Committed to Agricultural Land statistics for Sonoma County. Posted July 2008.
Main Report (673 kb): Executive Summary; Program Introduction; 2004 Improvements; Understanding the Data;
Land Use Conversion 2002-2004
Appendix A (392 kb): County Conversion Tables*
Appendices B, C, D, and E (228 kb): 2002 and 2004 County Acreage Tallies; County and Regional Conversion Summaries; Rural Land Mapping Summaries; Farmland of Local Importance Definitions
* Report tables are in PDF format--Excel 2000 versions of the same tables are also available for download.
You may need to update Acrobat Reader if you get error messages.
Paper copies are also available by contacting FMMP. Please send us your questions and comments!