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American Factbook

Every public number, kept current.

San Diego Sector

CBP recorded 918 encounters in the San Diego Sector in August 2026, rank 17 of 41 sectors and field offices. U.S. Border Patrol records its encounters, and CBP places it in the Southwest Land Border group.

American Factbook Research

August 2026 at a glance

Encounters, August 2026
918
Events recorded, not people.
Change on the prior month
-13.8%
From 1,065 in July 2026.
Fiscal year 2026 to date
10,374
The first 11 months of the fiscal year.
Rank in the latest month
17 of 41
Among all sectors and field offices CBP reports on.
Component
U.S. Border Patrol
The part of CBP that recorded these encounters.
Encounters in the published file
615,477
Since October 2022.

Taken from CBP on September 19, 2026. CBP revises earlier months when it republishes the file.

Who was encountered

Showing the main columns. Turn the phone, or open a row, for the full breakdown.

Encounters in the San Diego Sector by CBP demographic category, August 2026
CategoryEncounters
Single adults810
Unaccompanied children57
Family unit individuals51

A category CBP recorded no encounters for in this sector does not appear.

Since October 2022

Showing the main columns. Turn the phone, or open a row, for the full breakdown.

Encounters in the San Diego Sector by month
MonthEncounters
October 202217,875
November 202216,850
December 202218,952
January 202315,440
February 202317,030
March 202323,286
April 202325,123
May 202322,858
June 202312,901
July 202315,032
August 202318,985
September 202326,609
October 202329,878
November 202331,163
December 202334,370
January 202424,709
February 202431,562
March 202433,784
April 202437,371
May 202432,505
June 202425,612
July 202415,561
August 202414,436
September 202413,309
October 202414,165
November 202410,570
December 202410,111
January 20256,388
February 20251,648
March 20251,200
April 20251,315
May 20251,394
June 2025895
July 2025555
August 2025715
September 2025946
October 2025960
November 2025833
December 2025855
January 2026798
February 2026850
March 2026947
April 2026958
May 20261,151
June 20261,039
July 20261,065
August 2026918

Nearest by volume

Sectors and field offices either side of the San Diego Sector in August 2026
RankSector or field officeAugust 2026
16Boston Field Office1,032
18Del Rio Sector885

Full rankings: sectors and field offices and countries of citizenship. All topics: immigration and the border.

What this page cannot show

  • An encounter is an event. The same person may be encountered more than once, so these are not counts of people.
  • The area of responsibility is the sector or field office that recorded the encounter. It is not where a person entered, and not where they intended to go.
  • CBP revises earlier months when it republishes the file, so a figure is only as current as the snapshot it was drawn from.

Full method at methodology.

Sources

  • Nationwide Encounters — U.S. Customs and Border Protection · U.S. Government work, public domain (17 U.S.C. 105) · retrieved 2026-09-19
    apps/web/queries/immigration/sector_trend.sql

Data retrieved