Disaster detail

SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

DR-4683-CA affected San Mateo County, California. This page rolls up the declaration record, assistance metrics, and public-assistance categories for that specific event.

Incident type
Flood
DR-4683-CA
Declared
Jan 14, 2023
DR
Public assistance
$13.6M
Project obligations
Registrations
1,543
Tracked households
Aid breakdown

What FEMA records show for this declaration

Public assistance

Debris Removal$3.2M
Emergency Protective Measures$2.6M
Roads and Bridges$2.4M
Water Control Facilities$1.5M
Utilities$1.3M
Parks, Recreational Facilities, and Other Items$1.3M
Buildings and Equipment$769K
Management Costs$525K
Total PA obligated$13.6M

Individual assistance

Owner-approved dollars$4.5M
Renter-approved dollars$514K
Intake IHP dollars$10.1M
Validated phase 2 dollars$12.0M
Tracked registrations1,543
About this declaration

What DR-4683-CA means

DR-4683-CA is a FEMA disaster declaration that affected San Mateo County, California, with an incident window starting Dec 27, 2022 through Jan 31, 2023. The declaration type is "DR," categorized as flood.

When FEMA issues a declaration, it can authorize Individual Assistance (IA), Public Assistance (PA), or Hazard Mitigation (HM) programs — or any combination. IA covers direct aid to households: housing repairs, rental assistance, and other needs. PA funds infrastructure repair and emergency protective measures managed by local governments and nonprofits. The dollar figures on this page reflect what FEMA's open datasets report as obligated, which may differ from final disbursements.

This declaration is one entry in the broader San Mateo County disaster history page, which shows all declarations, the dominant hazard pattern, decade-by-decade trends, and flood insurance context for the county.