Unclaimed property in Port Costa, CA
757 records · $167,706 unclaimed
Highest-value records first. Search below to find yours.
These records are grouped by the owner address on file. The program holding a record may be in a different state; use the state badge and claim link on each result to verify it with the correct official program.
Data current as of October 26, 2026 · official state programs
PO Box 14, Port Costa, CA, 94569
Held by Highmark Inc.
Individual policy benefit/Clm · ID 1034285117
$52.44
PO Box 107, Port Costa, CA, 94569
Held by Wal-Mart Stores Inc. And Subsidiaries
Refunds due · ID 1045629256
$52.14
PO Box 120, Port Costa, CA, 94569
Held by Progressive Casualty Insurance Co
Premium refunds · ID 1026518943
$52.00
S6h4p PO 545 Station, Port Costa, CA, 94569
Held by Cellco Partnership DBA Verizon Wireless
Customer overpayments · ID 973700738
$51.99
71 Canyon Lake Drive, Port Costa, CA, 94569
Held by Comcast Cable Comm Mgmt LLC
Refunds due · ID 992749526
$51.93
P.o. Box 11, Port Costa, CA, 94569
Held by Blue Cross Of California
Insurance claim checks · ID 16403084
$51.28
PO Bx 38, Port Costa, CA, 94569
Held by Aaa Ncnu Insurance Exchange
Co-owner on this record: Wood, Janie M
Insurance premiums · ID 10179055
$51.05
PO Bx 38, Port Costa, CA, 94569
Held by Aaa Ncnu Insurance Exchange
Co-owner on this record: Wood, William C
Insurance premiums · ID 10179055
$51.05
$50.00
35 Harbor Drive, Port Costa, CA, 94569
Held by Sears Roebuck And Co
Refunds due · ID 954030500
$50.00
3717 Mt Diablo Boulevard 106, Port Costa, CA, 94569
Held by Hewlett-Packard Company
Refunds due · ID 954549081
$50.00
10840 Inspiration Circle, Port Costa, CA, 94569
Held by Cellco Partnership DBA Verizon Wireless
Misc outstanding checks · ID 957378771
$50.00
2459 Stewart Avenue, Port Costa, CA, 94569
Held by Sears Roebuck And Co
Refunds due · ID 957912297
$50.00
1557 Calle Santa Ana, Port Costa, CA, 94569
Held by Sears Roebuck And Co
Refunds due · ID 957918372
$50.00
725 Treasure Drive, Port Costa, CA, 94569
Held by Hewlett-Packard Company
Refunds or rebates · ID 960758502
$50.00
3725 Sundale Road, Port Costa, CA, 94569
Held by Hewlett-Packard Company
Refunds or rebates · ID 960761133
$50.00
15 Vinewood Court, Port Costa, CA, 94569
Held by Cellco Partnership
Misc outstanding checks · ID 961837962
$50.00
820 Oakwood Way, Port Costa, CA, 94569
Held by Cellco Partnership
Misc outstanding checks · ID 961844074
$50.00
2744 Terry Court, Port Costa, CA, 94569
Held by Cellco Partnership
Misc outstanding checks · ID 961855759
$50.00
3268 Judith Lane, Port Costa, CA, 94569
Held by Cellco Partnership DBA Verizon Wireless
Misc outstanding checks · ID 964005097
$50.00
138 Copper Wy, Port Costa, CA, 94569
Held by Cellco Partnership DBA Verizon Wireless
Misc outstanding checks · ID 964005342
$50.00
228 San Joaquin Avenue, Port Costa, CA, 94569
Held by Cellco Partnership DBA Verizon Wireless
Misc outstanding checks · ID 964025849
$50.00
109 San Joaquin Court, Port Costa, CA, 94569
Held by Cellco Partnership DBA Verizon Wireless
Misc outstanding checks · ID 970555497
$50.00
2164 San Miguel Drive, Port Costa, CA, 00000
Held by Office Depot Inc
Refunds due · ID 972864178
$50.00
524 Laura Ann Court, Port Costa, CA, 94569
Held by Sprint United Management
Misc outstanding checks · ID 978010969
$50.00
1395 Creekside Drive 364, Port Costa, CA, 94569
Held by Trans World Entertainment
Misc outstanding checks · ID 979671470
$50.00
63 Leo Lane, Port Costa, CA, 94569
Held by Fullbeauty Brands Holdings Corp
Refunds due · ID 986309096
$49.02
$49.00
PO Box 5, Port Costa, CA, 94569
Held by State Farm Mutual Automobile Ins
Premium refunds · ID 993118885
$48.71
PO Box 107, Port Costa, CA, 94569
Held by Quest Diagnostics Incorporated
Customer overpayments · ID 1013759008
$48.31
PO Box 49, Port Costa, CA, 94569
Held by Navient Corporation
Refunds due · ID 1000195905
$48.22
$46.81
P O Box 98, Port Costa, CA, 94569
Held by Union Bank N.a.
Outstanding official checks · ID 1008067069
$46.63
14 Del Rey Court, Port Costa, CA, 94569
Held by Nortonlifelock Inc
Refunds due · ID 966561567
$45.00
PO Box 46, Port Costa, CA, 94569
Held by Kaiser Foundation Health Plan
Accounts payable · ID 1003371696
$45.00
PO Box 105, Port Costa, CA, 94569
Held by At&t Services Inc
Refunds due · ID 1022340318
$45.00
6 Railroad Avenue, Port Costa, CA, 94569
Held by Central Bank
Checking accounts, demand deposit · ID 5473231
$44.18
PO Box 42, Port Costa, CA, 94569
Held by Comcast Corp
Co-owner on this record: Estrada, Norma R
Cash for fractional shares · ID 1010726719
$44.02
PO Box 42, Port Costa, CA, 94569
Held by Comcast Corp
Co-owner on this record: Estrada, Marce J
Cash for fractional shares · ID 1010726719
$44.02
PO Box 120, Port Costa, CA, 94569
Held by At&t Services Inc
Refunds due · ID 1003426875
$43.43
PO Box 87, Port Costa, CA, 94569
Held by Wm Corporate Services Inc
Customer overpayments · ID 1009775166
$42.69
PO Box 16, Port Costa, CA, 9456
Held by Mdl No 2036 - Checking Account Overdraft Litigation
Co-owner on this record: Tammy, Jean Barnhart
Misc outstanding checks · ID 1003724237
$42.35
PO Box 106, Port Costa, CA, 94569
Held by Comcast Cable Communications LLC
Refunds due · ID 1044516625
$41.96
P O Box 45/20 Canyon Lakes Drive, Port Costa, CA, 94569
Held by Pacific Bell Telephone Company
Commissions · ID 12205120
$41.78
128 Canyon Lake Drive, Port Costa, CA, 94569
Held by Stillwater Insurance Services Inc
Premium refunds · ID 1045272408
$41.31
5 Canyon Lake Drive #14, Port Costa, CA, 94569
Held by El Cerrito Automotive Company
Wages, payroll, salaries · ID 1005409531
$41.00
PO Box 10, Port Costa, CA, 94569
Held by At&t Mobility Settlement Fund
Wages, payroll, salaries · ID 1038416383
$40.97
PO Box 104, Port Costa, CA, 94569
Held by Farmers Insurance Exchange
Other court deposits · ID 987173662
$40.50
PO Box 90, Port Costa, CA, 94569
Held by Newfield Exploration Company Common
Unexch stock of successor co · ID 980372490
$40.47
PO Bx 28, Port Costa, CA, 94569
Held by Shell Western States Fcu
Savings accounts/Credit union shrs · ID 17003737
$40.35
95 Canyon Valley Road, Port Costa, CA, 94553
Held by German Motors Corp DBA Bmw Of Sf
Refunds due · ID 958297609
$40.29
61 Canyon Lake, Port Costa, CA, 94569
Held by Pacific Bell Telephone Company
Refunds · ID 12225111
$40.00
PO Box 107, Port Costa, CA, 94525
Held by Tenet Healthcare Corporation
Refunds due · ID 952948219
$40.00
Yiu, YauCA
41037 Gaucho Way, Port Costa, CA, 94569
Held by Searsroebuck And Co.
Refunds due · ID 961480839
$40.00
465 Woodview Terrace, Port Costa, CA, 94569
Held by Minnesota'S Credit Union
Cashier's checks · ID 954658346
$39.34
26 Canyon Lake Drive, Port Costa, CA, 94569
Held by Comcast Cable Comm Mgmt LLC
Refunds due · ID 1028352751
$39.34
3 Canyon Lake Drive # 118, Port Costa, CA, 94569
Held by State Farm Mutual Automobile Insurance C
Premium refunds · ID 1026632969
$39.22
5 Canyon Lake Drive Apt 2, Port Costa, CA, 94569
Held by Comcast Cable Comm Mgmt LLC
Refunds due · ID 1011828094
$38.97
PO Box 94, Port Costa, CA, 94569
Held by Kiva User Funds LLC
Accounts-receivable credit balance · ID 995933415
$38.27
PO Box 2, Port Costa, CA, 94569
Held by Government Employees Insurance Company
Premium refunds · ID 985804306
$38.00
PO Box 11, Port Costa, CA, 94569
Held by Skyworks Solutions Inc
Co-owner on this record: Amsbury, Ella M Mrs
Dividends · ID 999207659
$37.68
PO Box 11, Port Costa, CA, 94569
Held by Skyworks Solutions Inc
Co-owner on this record: Amsbury, George A
Dividends · ID 999207659
$37.68
$37.29
PO Box 46, Port Costa, CA, 94569
Held by Kaiser Foundation Health Plan
Accounts payable · ID 1003371697
$35.00
38 Canyon Lake Drive, Port Costa, CA, 94569
Held by Metropcs Communications Inc.
Unrefunded overcharges · ID 975957589
$34.73
PO Box 80, Port Costa, CA, 94569
Held by State Farm Mutual Automobile Ins
Premium refunds · ID 986426633
$34.49
54 Canyon Lake Drive, Port Costa, CA, 94569
Held by Jpmorgan Chase Bank N.a. (510008)
Customer overpayments · ID 1029607020
$34.08
$34.00
118 Canyon Drive, Port Costa, CA, 94569
Held by Colonial Penn Life Insurance Company
Other amounts due under policy · ID 974788347
$33.39
PO Box 90, Port Costa, CA, 94569
Held by Newfield Exploration Company Common
Cash for fractional shares · ID 980372489
$33.19
General Delivery, Port Costa, CA, 94569
Held by Aaa Ncnu Insurance Exchange
Court settlements · ID 11074755
$33.00
$33.00
124 Canyon Lake Drive, Port Costa, CA, 94569
Held by Enterprise Rent A Car Of Sf LLC
Customer overpayments · ID 991090018
$33.00
65 Canyon Lake Drive, Port Costa, CA, 94569
Held by Csaa Insurance Exchange
Premium refunds · ID 1008583180
$33.00
1 Prospect Avenue, Port Costa, CA, 94569
Held by Republic Services Inc
Accounts-receivable credit balance · ID 1022603441
$33.00
14 Canyon Lake, Port Costa, CA
Held by Pacific Bell Telephone Company
Other · ID 5015918
$32.88
7355 Quartz Circle, Port Costa, CA, 94569
Held by Stanford Health Care Tri-Valley
Refunds due · ID 1005764466
$32.37
5 Canyon Lake 2nd Flr, Port Costa, CA, 94569
Held by Pacific Bell Telephone Company
Other · ID 5613791
$32.13
PO Box 90, Port Costa, CA, 94569
Held by Travelers Indemnity Company
Premium refunds · ID 1021872597
$32.00
PO Box 108, Port Costa, CA, 94569
Held by Safeco Ins Co Of America
Co-owner on this record: Post, David
Premium refunds · ID 1022214047
$32.00
PO Box 108, Port Costa, CA, 94569
Held by Safeco Ins Co Of America
Co-owner on this record: Post, Sharon
Premium refunds · ID 1022214047
$32.00
9000 Carquinez Scenic Drive, Port Costa, CA, 94569
Held by Sportsman V A Place For Rover Inc
Wages, payroll, salaries · ID 1070021536
$31.64
3 Canyon Lake Drive, Port Costa, CA, 94569
Held by Government Employees Insurance Company
Individual policy benefit/Clm · ID 1001090847
$31.46
14400 Eel River Road, Port Costa, CA, 94569
Held by Radioshack Corp Odd Lot Tenders
Dividends · ID 12851641
$30.00
1315 Alma Avenue 141, Port Costa, CA, 94569
Held by Johnson & Johnson Vision Care Inc
Refunds due · ID 956592655
$30.00
3218 Vernon Avenue, Port Costa, CA, 94569
Held by Johnson & Johnson Vision Care Inc
Refunds due · ID 956592872
$30.00
3923 Vine Street, Port Costa, CA, 94569
Held by Johnson & Johnson Vision Care Inc
Refunds due · ID 956593037
$30.00
PO Box 862, Port Costa, CA, 94569
Held by Western Digital Technologies Inc.
Refunds or rebates · ID 961523866
$30.00
461 Virgil Street, Port Costa, CA, 94569
Held by Western Digital Technologies Inc.
Refunds or rebates · ID 961528230
$30.00
PO Box135, Port Costa, CA, 94569
Held by Blue Triton Brands, Inc.
Accounts-receivable credit balance · ID 968337545
$30.00
71 Canyon Lake Drive, Port Costa, CA, 94569
Held by Kaiser Foundation Health Plan Of So Cal
Accounts payable · ID 1015124675
$30.00
64 Canyon Lake Drive 35, Port Costa, CA, 94569
Held by Metropcs Communications Inc.
Unrefunded overcharges · ID 975962452
$29.70
4 Prospect Avenue, Port Costa, CA, 94569
Held by Toyota Mdl Qualified Settlement Fund
Funds held in a fiduciary capacity · ID 1002873947
$29.23
2 Railroad Avenue, Port Costa, CA, 94569
Held by Aaa Ncnu Insurance Exchange
Court settlements · ID 11075046
$29.00
Peggy L Baker Trippet P O Box 127, Port Costa, CA, 94569
Held by Liberty All Star Equity Fund
Dividend reinvestment plan · ID 980506028
$28.86
PO Box 32, Port Costa, CA, 94569
Held by Prematic Service Corp - Ca
Refunds due · ID 957086547
$28.22
101 Erskine Street 1, Port Costa, CA, 94569
Held by San Francisco Chronicle
Accounts-receivable credit balance · ID 957210643
$27.71
136 Prospect Avenue, Port Costa, CA, 94569
Held by Old Republic Title Company
Co-owner on this record: Mackenzie, John
Escrow funds · ID 986412420
$27.40
136 Prospect Avenue, Port Costa, CA, 94569
Held by Old Republic Title Company
Co-owner on this record: Kellar, Mary
Escrow funds · ID 986412420
$27.40
37 Canyon Lake Drive, Port Costa, CA, 94569
Held by Best Buy Co Inc & Subsidiaries
Wages, payroll, salaries · ID 1028436856
$27.34