FDIC-insured bank

The First Security Bank

Bank headquartered in Overbrook, Kansas, part of OVERBROOK BANKSHARES INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Total assets
$225.59 million
Total deposits
$191.42 million
Branches
8
FDIC-insured since
1934
Established
1897

Headquarters and contact

Address312 Maple St
Overbrook, KS 66524
CountyOsage
Metro areaTopeka, KS
Websitewww.firstsecurityks.com
Phonenot published in FDIC data, see the bank's website

FDIC record

FDIC Certificate4752
Federal Reserve RSSD ID460350
StatusActive
Charter classNM (STATE)
Holding companyOVERBROOK BANKSHARES INC
Domestic offices8
Financials as ofJune 30, 2026

Routing number

FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.firstsecurityks.com.
See how your odds compare before you apply at The First Security Bank.

Offices nearest to headquarters

The First Security Bank main office
Overbrook, KS
312 Maple St, 66524
Carbondale Branch
Carbondale, KS
530 Main St, 66414
The First Security Bank Tonganoxie Branch
Tonganoxie, KS
415 Stone Creek Drive, 66086
Paola Branch
Paola, KS
29 W Wea St, 66071
Downtown Wichita Branch
Wichita, KS
121 E Kellogg St, 67202
Conway Bank Branch
Conway Springs, KS
124 W Spring Ave, 67031
Norwich Branch
Norwich, KS
310 S Main St, 67118
Farmers & Merchants Branch
Argonia, KS
101 S Main St, 67004

Where The First Security Bank has offices

Other banks headquartered in Overbrook