eLivermore.com - By Bill Nale

 

General Information
About the Tri-Valley Area

Back to: Home Page

Sign our Guestbook


   Contents

Gen Info & Stats (Census)
History (local) 
Weather - Precipitation
Misc local stuff.
Local Photos
Aerial Photos 
Parks, Fairgrounds, etc
 

Newspapers & Publications
TV Stations
Radio Stations

Internet Links:
  Guides & Portals  
  Family Oriented
  Religious


 

General Information and stats

City Overviews  -  2000 Census Data  -  Telephone Exchanges

City Overviews

  Livermore Pleasanton Sunol Dublin San Ramon Danville Blackhawk
City Established 4/1/1876 6/18/1894   2/1982 7/1/1983 7/11982  
County Alameda Alameda Alameda Alameda Contra Costa Contra Costa Contra Costa
Area (Sq Mi) 24.1 22   12.2 11 18.128  
Elevation (feet) 480 335   125-367   125-360  
Ave Low temp 45.3 42   45.3   51.3  
Ave High temp 73.2 73   73.2   72  
highest temp recorded 115         114  
lowest temp recorded 18         17  
Annual Rainfall 14.48 17 in   14.52 in   23  
Latitude 37 40' 53" N 37 39' 34" N 37 35' 32" N 37 42' 19" N 37 46' 30" N 37 49' 19" N 37 48' 27" N
Longitude 121 46' 18" W 121 53' 06" W 121 53' 167" W 121 56' 11" W 121 59' 02" W 122 00' 12" W 121 53' 42" W
Area Code 925 925 925 925 925 925 925
Zip Codes
Find Specific Zip Code
94550
94551
94566
94586
94588
94586 94568 94583 94526 (main)
94506
94506

Blank columns indicate information has not been found.
Most data taken from city web sites, and may not come from consistent original sources.
Temperature numbers for Livermore are from a link from the National Weather Service averaged from 1930 to 2001.  The Dublin city web site appears to use the Livermore numbers.
The Find Specific Zip Code here and above will go to the Post Office zip code page, where a specific address can be entered.

2000 Census Data
The following information was obtained from the 2000 Census data at www.census.gov

  US total California Bay Area Tri-Valley* Livermore Pleasanton Sunol Dublin San Ramon Danville Blackhawk
Population 281,421,906 33,871,648 7,039,362 213,026 73,345 63,654 1,332 29,973 44,722 41,715 10,048
Population, 1990 248,709,873 29,760,021 6,253,311 165,826 56,741 50,553 - 23,229 35,303 31,306 6,199
% increase, 1990-2000 13.2% 13.8% 12.6% 28.5 29.3% 25.9% - 29.0% 26.7% 33.2% 62.1%
Median Age (years) 35.3 yr 33.3 yr 35.6 35.8 yr 35.0 yr 36.9 yr 41.3 yr 34.3 yr 36.5 yr 39.9 yr 41.4 yr

2000 population age breakdown

Under 18 25.7% 27.3% 23.6% 26.7% 28.1% 28.2% 22.7% 21.0% 26.3% 28.6% 29.0%
18 to 24 9.6% 9.9% 8.9% 6.7% 7.1% 5.5% 8.2% 9.3% 5.8% 4.2% 4.8%
25 to 44 30.2% 31.6% 33.7% 35.9% 35.1% 33.4% 25.5% 44.1% 35.7% 27.7% 24%
45 to 64 22% 20.5% 22.7% 23.8% 22.1% 25.3% 33.0% 21.0% 26.2% 29.3% 35.8%
65 and over 12.4% 10.6% 11.1% 6.9% 7.5% 7.6% 10.7% 4.6% 6.1% 10.3% 6.4%
Total Households 105,480,101 11,502,870 2,557,158 76,186 26,123 23,311 483 9,325 16,944 14,816 3,326
Family Household % 68.1% 68.9% 64.6% 73.4% 74.7% 74.6% 76.2% 69.8% 71.7% 80.1% 90.5%
% Households w/children under 18 32.8% 35.8% 31.4% 39.2% 40.2% 40.8% 32.3% 35.4% 37.9% 42.2% 46.2%
% Households non-family 31.9% 31.1% 35.4% 26.6% 25.3% 25.4% 23.8% 30.2% 28.3% 19.9% 9.5%
Householder living alone 25.8% 23.5% 25.8% 19.8% 18.8% 19.3% 17.2% 21.3% 21.1% 15.5% 6.7%

*Tri Valley includes Livermore, Pleasanton, Sunol, Dublin, and San Ramon for the numbers above.
Total and Tri-Valley total for percentages and median age are calculated using weighted average.

Some Observations:
The Tri-Valley area grew at about double the National and California averages from 1990 to 2000.  28.5% over 10 years is just over a 2.5% per year growth.  The National average was about 1.25% per year.

The Tri-Valley has fewer people in the 18-24 age group and far fewer people over age 65 than than the National and California averages.

The Tri-Valley has more people in the Under 18 age group (especially Livermore & Pleasanton) and much higher in the 25-44 age group than the National average.

The Tri-Valley has far higher than the National or California averages for family household percentage.

These numbers suggest that the Tri-Valley is home to a lot of young families, which is what would be expected.

 

Telephone Exchanges

The following is a list of Pacific Bell exchanges (prefixes) used in each city.  Livermore, Pleasanton, and Sunol have their own switches.  Dublin and San Ramon are combined, and share exchanges.

This list does not include cell phone exchanges, or non-Pacific Bell exchanges (ATT Broadband), although other carriers will use some of these exchanges, when phone service has been switched between carriers and the same number is maintained.

The exchange list was obtained from Pacific Bell on 11/5/02.  New exchanges are added periodically.

In general the exchanges are contained within a local switch, and are not shared between them.  Moving from Livermore to Pleasanton, for instance, requires a phone number change.

Note that some business numbers in San Ramon have been noticed with Danville exchanges.

Each exchange represents 10,000 possible phone numbers (although some are likely reserved).

Some large organizations, such as the Lab, have their own exchange(s).  These ARE included in this list.

Bold numbers represent exchanges that are known to be very heavily used residentially, or been in use for a long period of time (this list is likely incomplete).  Suggestions welcome for inclusion.
 
City qty Exchanges
Livermore 41 215, 243, 245, 273, 278, 290, 292, 294, 315, 321, 337, 339, 344, 347, 371, 373, 422, 423, 424, 443, 447, 449, 453, 454, 455, 456, 493, 518, 525, 579, 583, 605, 606, 667, 724, 742, 784, 800, 960, 961, 980
Pleasanton 76 200, 201, 202, 204, 209, 214, 218, 223, 224, 225, 226, 227, 249, 251, 264, 271, 343, 351, 352, 353, 366, 367, 368, 396, 397, 398, 399, 400, 401, 416, 417, 425, 426, 460, 461, 462, 463, 467, 468, 469, 474, 475, 484, 485, 519, 520, 523, 535, 572, 580, 596, 598, 600, 621, 623, 660, 694, 699, 701, 730, 734, 737, 738, 750, 846, 847, 872, 892, 918, 922, 924, 931, 963, 965, 989, 998.     510 area code:  998
Sunol 10 233, 319, 568, 663, 731, 789, 835,  860, 862, 999
Dublin and San Ramon 42 216, 230, 236, 241, 248, 307, 336, 361, 364, 404, 413, 419, 452, 478, 487, 548, 549, 551, 556, 557, 558, 560, 570, 574, 577, 587, 593, 640, 719, 785, 803, 819, 828, 829, 833, 858, 875, 895, 905, 967, 997, 999

 

Local History

See Our History Page
eLivermore.com contains a great deal of historical information, including hundreds of photographs.

 

Misc Local Stuff
  Hacienda Business Park  
Holiday Decorations
  The Haunt Halloween site Livermore
  Lights of the Valley Provides pictures of local Christmas lights and maps.  Sections for Livermore, Pleasanton, Dublin, San Ramon, and more.
  Deacon Dave's Christmas Deacon Dave's 
Local Photos
  Our Sites and Landmark Photos Page  
  See our Aerial Photos section below.  
Wineries
  Our Winery Page listing all local wineries and associations
     
Parks & Recreation
  Parks on the Things to Do page,

back to top - Home Page

 

Aerial Photos

Aerial Photos of Livermore (or anywhere in the country).  All of Livermore  -  Bay Area.    Zoom, pan search to find what you want.  From Microsoft Terra Server.  Worth a look.

These Photos are from the Microsoft Terra Server.  They are USGS photos taken on June 12, 1993.  On the Terra Server, you can zoom in and move around to any spot in the country.  Find your house (if it was built before June 12, 1993).

The picture above is of downtown Livermore.

Click Here to go to the Terra Server showing downtown Livermore

Click Here for a zoomed back photo of most of Livermore

Click here for downtown Pleasanton

See Also Historical Photos from the air on our Historical Photos Page

back to top - Home Page

Newspapers, TV, Radio

 

Newspapers and Publications

Local Newspapers

 
The Independent Livermore paper published every Thursday
Tri Valley Herald Serving the Tri Valley Area.   An ANG Paper.
Valley Times Serving the Tri-Valley Area.  A Knight Ridder Paper.  127 Spring St, Pleasanton.  462-4160.
Pleasanton Weekly  
Barry Schrader's History Columns Local Historian Barry Schrader had a column which runs weekly in the Herald, Valley Times, and Independent.
   

Local Issues

 
Grassroots Issues TV show where local issues discussed.  Airs Thursdays at 7:30pm on cable channel 26.
   

Local Publications

 
Something to Read Stories and Poetry Publication, published quarterly, in Livermore.
Tri-Valley Magazine Published Bi-monthly
Valley Lifestyles Published every 6 weeks.  Local stories.
Diablo Magazine Published in Walnut Creek, covering the Tri-Valley and up through the Walnut Creek area.
   

Bay Area Papers

 
San Francisco Examiner  
San Francisco Chronicle  
SF Gate Online Service of the San Francisco Chronicle and Examiner
San Jose Mercury News  
Contra Costa Times  
Oakland Tribune  

back to top - Home Page

 
TV Stations
KTVU Channel 2 FOX Affiliate in San Francisco
Channel 3 (cable) See KNTV Channel 11 below.
KRON Channel 4 Independent in San Francisco (was NBC until 2002)
KPIX Channel 5 CBS Affiliate in San Francisco
KGO   Channel 7 ABC Affiliate in San Francisco
KQED Channel 9 PBS Affiliate in San Francisco
KNTV Channel 11 NBC Affiliate in San Jose.  Cable Channel 3.  NBC's bay area station starting 1/1/02
KBWB Channel 20 WB Affiliate in San Francisco
KTSF Channel 26 Asian and European Language station in San Francisco
KICU Channel 36 Independent in San Jose
KBHK Channel 44 UPN Affiliate in San Jose
KTEH Channel 54 PBS Affiliate in San Francisco
KCSM Channel 60 PBS and Community College Channel in San Mateo
CTV30 Valley Cable Community Access Channel 30

back to top - Home Page

 
Radio stations  Only local to Tri Valley Area listed.
KKIQ 101.7 Pleasanton
Yahoo List Yahoo list of bay area radio stations

back to top - Home Page

 

 

Internet Guides and Links 

Tri-Valley Guides Bay Area Guides Internet Portals

 

Tri Valley Guides   City Guides, mostly commercial 
  Note:  On March 1, 2006 I removed a number of listing from this section at they were no longer valid.
The ones removed either:
    No longer exist (error returned when trying to access)
    Now provide only generic search engine results.
  eLivermore.com / ePleasanton.org This site.
  Dublin On-Line Guide Discontinued.
     
  Danville City Guide  
     
  Sunol.net Information and links about Sunol
  EastCountyLive Serving Antioch, Brentwood, Oakley, & Pittsburg
     
  Lights of the Valley  Christmas lights
  Official City Web Sites are on the Government Section  
     
Bay Area Guides
  Bay Tripper Travel, Shopping, and Events around the SF bay area.
Features many things in the Tri-Valley area.
  Bay Insider Bay area guide and news connected to KTVU Channel 2
  See also Yahoo SF Bay, etc. in Portals below  
  CitySearch SF Bay  
  BayArea.com guide to the bay area
Internet Portals, some with local sections
  Yahoo sites for:   SF Bay,    Dublin,   Livermore,    Pleasanton,    San Ramon
  Open Directory Project for: SF BayDublinLivermorePleasantonSan Ramon
  Google    Go Network     Lycos    MSN   AltaVista