| First Niagara Bank - Avon Branch | Avon860-676-0338 | 860-676-0338 |
| First Niagara Bank - Branford Green Branch | Branford203-483-1713 | 203-483-1713 |
| First Niagara Bank - Branford East Branch | Branford203-315-8039 | 203-315-8039 |
| First Niagara Bank - Centerbrook Branch | Centerbrook860-767-8208 | 860-767-8208 |
| First Niagara Bank - Cheshire Branch | Cheshire203-271-1508 | 203-271-1508 |
| First Niagara Bank - Southwick Branch | Cheshire203-699-9420 | 203-699-9420 |
| First Niagara Bank - Chester Branch | Chester860-526-4381 | 860-526-4381 |
| First Niagara Bank - Clinton Shoreline Branch | Clinton860-669-2950 | 860-669-2950 |
| First Niagara Bank - Columbia Branch | Columbia860-228-2265 | 860-228-2265 |
| First Niagara Bank - Cos Cob Branch | Cos Cob203-661-9445 | 203-661-9445 |
| First Niagara Bank - Coventry Branch | Coventry860-742-5311 | 860-742-5311 |
| First Niagara Bank - Danielson Branch | Danielson860-774-8501 | 860-774-8501 |
| First Niagara Bank - Dayville Branch | Dayville860-779-2065 | 860-779-2065 |
| First Niagara Bank - Burnside ATM | East Hartford | |
| First Niagara Bank - East Hartford Silver Lane Branch | East Hartford860-568-7137 | 860-568-7137 |
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| First Niagara Bank - East Hartford Branch | East Hartford860-528-4800 | 860-528-4800 |
| First Niagara Bank - Shop Rite - ATM | East Hartford | |
| First Niagara Bank - Goodwin College ATM | East Hartford | |
| First Niagara Bank - Frontage Road Branch | East Haven203-466-5297 | 203-466-5297 |
| First Niagara Bank - East Haven Branch | East Haven203-467-7723 | 203-467-7723 |
| First Niagara Bank - East Windsor Branch | East Windsor860-627-2750 | 860-627-2750 |
| First Niagara Bank - Eastford Branch | Eastford860-974-6012 | 860-974-6012 |
| First Niagara Bank - Ellington Branch | Ellington860-875-6233 | 860-875-6233 |
| First Niagara Bank - Enfield Branch | Enfield860-745-6100 | 860-745-6100 |
| First Niagara Bank - Essex Meadows Branch | Essex860-767-8292 | 860-767-8292 |
| First Niagara Bank - Fairfield Center Branch | Fairfield203-254-0207 | 203-254-0207 |
| First Niagara Bank - Fairfield Woods Branch | Fairfield203-374-8966 | 203-374-8966 |
| First Niagara Bank - Glastonbury Main Branch | Glastonbury860-659-1657 | 860-659-1657 |
| First Niagara Bank - Guilford Branch | Guilford203-453-7529 | 203-453-7529 |
| First Niagara Bank - Mt. Carmel Branch | Hamden203-287-3156 | 203-287-3156 |
| First Niagara Bank - Whitneyville Branch | Hamden203-230-3525 | 203-230-3525 |
| First Niagara Bank - Whitney Center Branch | Hamden203-288-7579 | 203-288-7579 |
| First Niagara Bank - Hamden Branch | Hamden203-281-2971 | 203-281-2971 |
| First Niagara Bank - Parkville Branch | Hartford860-586-2001 | 860-586-2001 |
| First Niagara Bank - Downtown Hartford Branch | Hartford860-240-2626 | 860-240-2626 |
| First Niagara Bank - Hebron Branch | Hebron860-228-4485 | 860-228-4485 |
| First Niagara Bank - Madison Branch | Madison203-245-7355 | 203-245-7355 |
| First Niagara Bank - East River Branch | Madison203-245-8655 | 203-245-8655 |
| First Niagara Bank - Buckland Hill Mall ATM - Belgium Jewelers | Manchester | |
| First Niagara Bank - Manchester East Center Street Branch | Manchester860-645-4440 | 860-645-4440 |
| First Niagara Bank - Manchester Shop Rite Branch | Manchester860-533-2001 | 860-533-2001 |
| First Niagara Bank - Manchester Main Branch | Manchester860-645-2627 | 860-645-2627 |
| First Niagara Bank - Manchester North Main Branch | Manchester860-533-5055 | 860-533-5055 |
| First Niagara Bank - Hartford Road ATM | Manchester | |
| First Niagara Bank - Manchester Middle Turnpike Branch | Manchester860-646-8300 | 860-646-8300 |
| First Niagara Bank - Manchester Community College ATM | Manchester | |
| First Niagara Bank - Manchester Hospital ATM | Manchester | |
| First Niagara Bank - Highland Park Market ATM | Manchester | |
| First Niagara Bank - Milford Green Branch | Milford203-301-6340 | 203-301-6340 |
| First Niagara Bank - Monroe Branch | Monroe203-268-0026 | 203-268-0026 |
| First Niagara Bank - New Haven Main Branch | New Haven203-789-2781 | 203-789-2781 |
| First Niagara Bank - Westville Branch | New Haven203-392-3549 | 203-392-3549 |
| First Niagara Bank - Tower One Branch | New Haven203-401-4226 | 203-401-4226 |
| First Niagara Bank - Fair Haven Branch | New Haven203-562-4037 | 203-562-4037 |
| First Niagara Bank - Tweed Airport ATM | New Haven | |
| First Niagara Bank - North Branford Branch | North Branford203-315-4008 | 203-315-4008 |
| First Niagara Bank - North Haven Branch | North Haven 203-234-6890 | 203-234-6890 |
| First Niagara Bank - Norwalk Branch | Norwalk203-847-3600 | 203-847-3600 |
| First Niagara Bank - Old Saybrook Branch | Old Saybrook860-388-4667 | 860-388-4667 |
| First Niagara Bank - Orange Branch | Orange203-795-3542 | 203-795-3542 |
| First Niagara Bank - Plainville Branch | Plainville860-410-1799 | 860-410-1799 |
| First Niagara Bank - Putnam Branch | Putnam860-963-2265 | 860-963-2265 |
| First Niagara Bank - Ridgefield Branch | Ridgefield203-894-1035 | 203-894-1035 |
| First Niagara Bank - Rocky Hill Branch | Rocky Hill860-721-0496 | 860-721-0496 |
| First Niagara Bank - Seymour Branch | Seymour203-881-3696 | 203-881-3696 |
| First Niagara Bank - Shelton Branch | Shelton203-929-2357 | 203-929-2357 |
| First Niagara Bank - South Windsor Branch | South Windsor860-644-5392 | 860-644-5392 |
| First Niagara Bank - South Windsor Buckland Road Branch | South Windsor860-644-1501 | 860-644-1501 |
| First Niagara Bank - Stafford Branch | Stafford Springs860-684-4241 | 860-684-4241 |
| First Niagara Bank - Summer Street Branch | Stamford203-653-3031 | 203-653-3031 |
| First Niagara Bank - Harbor Point Branch | Stamford203-905-4185 | 203-905-4185 |
| First Niagara Bank - Springdale Branch | Stamford203-978-0802 | 203-978-0802 |
| First Niagara Bank - High Ridge Branch | Stamford203-968-6610 | 203-968-6610 |
| First Niagara Bank - Storrs Branch | Storrs860-487-7025 | 860-487-7025 |
| First Niagara Bank - Stratford Branch | Stratford203-381-1355 | 203-381-1355 |
| First Niagara Bank - Tolland Branch | Tolland860-870-7066 | 860-870-7066 |
| First Niagara Bank - Vernon Tri-City Branch | Vernon860-871-2700 | 860-871-2700 |
| First Niagara Bank - Vernon Branch | Vernon860-871-0035 | 860-871-0035 |
| First Niagara Bank - Ashlar Village Branch | Wallingford | |
| First Niagara Bank - Wallingford Branch | Wallingford203-269-4434 | 203-269-4434 |
| First Niagara Bank - West Hartford Branch | West Hartford860-313-6240 | 860-313-6240 |
| First Niagara Bank - West Haven Branch | West Haven203-931-3030 | 203-931-3030 |
| First Niagara Bank - Baybrook Branch | West Haven203-479-8769 | 203-479-8769 |
| First Niagara Bank - Westbrook Branch | Westbrook860-399-7365 | 860-399-7365 |
| First Niagara Bank - Westport Branch | Westport203-341-9698 | 203-341-9698 |
| First Niagara Bank - Wethersfield Branch | Wethersfield860-571-6333 | 860-571-6333 |
| First Niagara Bank - Mansfield Branch | Willimantic860-456-7155 | 860-456-7155 |
| First Niagara Bank - Willington Branch | Willington860-429-6481 | 860-429-6481 |
| First Niagara Bank - Wilton CT Branch | Wilton203-834-6825 | 203-834-6825 |
| First Niagara Bank - Windsor Branch | Windsor860-298-7720 | 860-298-7720 |
| First Niagara Bank - Woodbridge Branch | Woodbridge203-389-4394 | 203-389-4394 |
| First Niagara Bank - Woodstock Branch | Woodstock860-963-4663 | 860-963-4663 |
| First Niagara Bank - Yalesville Branch | Yalesville203-679-4240 | 203-679-4240 |
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