San Francisco placed third with 7 chart lists. The article makes special note of the San Jose-based Syndicate of Sound's song "Little Girl" "moving up the charts."
Indeed the song is shown in the 11th position on the weekly charts with a red star given to "sides registering proportionate upward progress" for the week. (By the way, harkening back to an older era, Frank Sinatra topped that week's chart with "Strangers In The Night." Representing the new era, The Beatles charted at no. 2 with "Paperback Writer.")
According to Joel Whitburn Presents Top 10 Singles Charts, "Little Girl" peaked at #8 during the week of July 9, 1966, squeezed between "Cool Jerk" by the Capitols at #7 and "Paint It Black" by the Rolling Stones at #9. It repeated at #8 the following week of July 16 and then faded away.
According to the Billboard Book of One Hit Wonders, the Syndicate of Sound recorded "Little Girl" on January 9, 1966 at Golden Gate Recorders in San Francisco at 665 Harrison Street. Leo de Gar Kulka opened Golden State Recorders in 1964 after moving north from Los Angeles and soon began recording many of the bands of the "San Francisco Sound." In If These Halls Could Talk, Heather Johnson describes it as "one of the few music recording studios in town with a recording room comparable in size to established L.A. and New York facilities."
source: John In Montana blog
The KFRC Weekly Music Charts 1966-1970 show "Little Girl" charting earlier in the Bay Area. On May 25, 1966 it was ranked #11, June 1, 1966 at #9 and on June 8, 1966 at #14 on the station's "Big 30." After that it did appear in the Top 30 again. It achieved its peak of popularity in the Bay Area a month before its national success.
This is an interesting time because radio stations were programmed locally and their record charts still reflected local tastes. That same week "Don't Bring Me Down" by The Animals reached #3 on KFRC, but it never reached Billboard's Top Ten.
The Billboard Book of One-Hit Wonders has a brief chapter describing the band's history and the creation of their hit song. The lead singer recalled: "I had no idea how I would interpret it vocally. It didn't really work putting melody on top ... so we agreed I'd do it, without a melody, but with attitude."
A black and white video from that time captures that attitude.
The Billboard Book of One-Hit Wonders by Wayne Jancik (Billboard Books, 1998).
Hall, Claude, "Detroit & L.A. Sales 'Happening Places'." Billboard (July 2, 1966), 1; 26.
If These Halls Could Talk: A Historical Tour Through San Francisco Recording Studios by Heather Johnson (Thomson Course Technology, 2006).
Joel Whitburn Presents Top 10 Singles Charts: Chart Data Compiled from Billboard's Best Sellers in Stores and Hot 100 charts, 1955-2000 (Record Research, 2001).
KFRC Weekly Music Charts. 1966-1970 by Frank W. Hoffmann (Paw Paw Press, 2015).