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BMO Bank N.A. Locations & Branches Chicago, Illinois
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BMO Bank N.A. operates 988 branches from its headquarters in Chicago, IL, .
BMO Bank N.A. branch network
Its 988 branches span 23 states and 667 cities. The most are in CALIFORNIA (226), ILLINOIS (179) and WISCONSIN (145). ILLINOIS holds 55.0% of its branch deposits. Chicago, IL has the most of its branches, 28. Its largest office by deposits is its main office in Chicago, IL, with $85.57B (44.1% of its branch deposits). On June 30, 2025 it had 1,003 branches, 15 more than in 2026.
BMO Bank N.A. at a glance
Its CET1 capital ratio was 14.97% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $254.97B
- CET1 ratio, Q2 2026
- 14.97%
- Deposit insurance
- FDIC
- Regulator
- OCC
- Latest call report
- Q2 2026, FFIEC 031
- Established
- 1947
Full financial profile · Is BMO Bank N.A. safe? · BMO Bank N.A. call report · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Chicago, IL (28 branches) | 1 of 60 | 25.2% | $87.08B |
| State: IL (179 branches) | 2 of 379 | 14.5% | $106.85B |
Ranked by total assets among banks headquartered in the state: Largest banks in Illinois.
Share by county and metro area
BMO Bank N.A.'s share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Cook, IL (84 branches) | 2 of 89 | 20.3% | $94.21B | $463.76B |
| Los Angeles, CA (47 branches) | 11 of 91 | 1.6% | $8.11B | $507.70B |
| Milwaukee, WI (27 branches) | 3 of 27 | 12.3% | $6.61B | $53.86B |
| Contra Costa, CA (12 branches) | 4 of 30 | 11.1% | $5.61B | $50.49B |
| Dupage, IL (24 branches) | 3 of 43 | 8.7% | $4.80B | $54.96B |
| Hennepin, MN (10 branches) | 5 of 67 | 2.9% | $4.23B | $144.16B |
| Maricopa, AZ (39 branches) | 8 of 55 | 1.9% | $3.58B | $186.33B |
| Dane, WI (13 branches) | 1 of 33 | 12.6% | $3.28B | $26.10B |
| Santa Clara, CA (23 branches) | 9 of 42 | 1.8% | $3.11B | $174.10B |
| Will, IL (21 branches) | 3 of 34 | 12.2% | $2.84B | $23.33B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Chicago-Naperville-Elgin, IL-IN-WI (189 branches) | 2 of 150 | 17.0% | $107.34B | $632.03B |
| Los Angeles-Long Beach-Anaheim, CA (65 branches) | 11 of 107 | 1.6% | $10.45B | $664.11B |
| San Francisco-Oakland-Berkeley, CA (50 branches) | 6 of 69 | 2.0% | $10.35B | $512.65B |
| Milwaukee-Waukesha, WI (51 branches) | 2 of 43 | 12.8% | $10.26B | $79.93B |
| Minneapolis-St. Paul-Bloomington, MN-WI (20 branches) | 7 of 124 | 1.9% | $4.79B | $252.68B |
| Indianapolis-Carmel-Anderson, IN (31 branches) | 8 of 52 | 4.3% | $3.99B | $92.02B |
| Phoenix-Mesa-Chandler, AZ (42 branches) | 7 of 55 | 2.0% | $3.71B | $189.69B |
| Madison, WI (16 branches) | 1 of 41 | 11.5% | $3.46B | $30.15B |
| San Jose-Sunnyvale-Santa Clara, CA (23 branches) | 9 of 42 | 1.8% | $3.11B | $175.30B |
| Denver-Aurora-Lakewood, CO (40 branches) | 9 of 68 | 2.4% | $2.72B | $110.97B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| BMO Bank N.A. (main office) | Chicago, IL | 60606 | $85.57B |
| San Ramon Branch | San Ramon, CA | 94583 | $4.58B |
| North Water Street Branch | Milwaukee, WI | 53202 | $4.05B |
| Lake Street Branch | Minneapolis, MN | 55408 | $3.40B |
| L.A. Main Branch | Los Angeles, CA | 90017 | $2.58B |
| Plaza Branch | Indianapolis, IN | 46204 | $2.25B |
| Capital Square Branch | Madison, WI | 53703 | $1.82B |
| San Francisco - 295 Bush St Branch | San Francisco, CA | 94104 | $1.38B |
| Wausau | Wausau, WI | 54403 | $1.38B |
| Newport Beach Branch | Newport Beach, CA | 92660 | $1.34B |
| Harris Bk Naperville Branch | Naperville, IL | 60563 | $1.25B |
| L.A. Bunker Hill Branch | Los Angeles, CA | 90071 | $1.24B |
| Phoenix Camelback Branch | Phoenix, AZ | 85012 | $1.12B |
| San Diego Main Branch | San Diego, CA | 92101 | $1.11B |
| San Jose Main Branch | San Jose, CA | 95110 | $1.09B |
| Harris Bk Hinsdale Na Branch | Hinsdale, IL | 60521 | $854.1M |
| Sacramento Main Branch | Sacramento, CA | 95814 | $825.8M |
| Long Beach City Place Branch | Long Beach, CA | 90802 | $775.5M |
| Denver-Downtown | Denver, CO | 80293 | $750.3M |
| Crescent Court Branch | Dallas, TX | 75201 | $609.6M |
| The Hill Branch | Saint Louis, MO | 63110 | $602.3M |
| Tampa Branch | Tampa, FL | 33602 | $592.4M |
| Seattle Branch | Seattle, WA | 98101 | $587.3M |
| Harris Bk Arlington-MeadowsRolling Meadows Branch | Rolling Meadows, IL | 60008 | $572.4M |
| Sherman Oaks Branch | Sherman Oaks, CA | 91403 | $522.0M |
| Green Bay | Green Bay, WI | 54303 | $485.0M |
| Shaw-West Branch | Fresno, CA | 93711 | $481.8M |
| Beverly Hills Branch | Beverly Hills, CA | 90212 | $444.8M |
| Harris Bk West Na Branch | Roselle, IL | 60172 | $438.3M |
| Naples Wealth Mgmt Office Branch | Naples, FL | 34108 | $413.4M |
| Harris Barrington Branch | Barrington, IL | 60010 | $396.4M |
| Brookfield - North 124th Street Branch | Brookfield, WI | 53005 | $393.7M |
| Oakland Main Branch | Oakland, CA | 94612 | $388.4M |
| Homer Glen Branch | Homer Glen, IL | 60491 | $371.0M |
| Roma Branch | Albuquerque, NM | 87102 | $341.2M |
| Kierland Wealth Mgmt Branch | Scottsdale, AZ | 85254 | $339.3M |
| Portland Main Branch | Portland, OR | 97205 | $330.6M |
| Southridge Branch | Greendale, WI | 53129 | $326.6M |
| South Roselle Road Branch | Schaumburg, IL | 60193 | $308.2M |
| Hilldale Branch | Madison, WI | 53705 | $307.8M |
| Leawood Office | Leawood, KS | 66211 | $307.7M |
| 1st and Herndon Branch | Fresno, CA | 93720 | $306.7M |
| Wauwatosa Branch | Wauwatosa, WI | 53213 | $306.1M |
| Appleton | Appleton, WI | 54911 | $292.9M |
| Whitefish Bay Branch | Whitefish Bay, WI | 53217 | $289.1M |
| Menomonee Falls Office Branch | Menomonee Falls, WI | 53051 | $286.0M |
| Harris Bk Winnetka Na Branch | Winnetka, IL | 60093 | $280.0M |
| Sacramento Arden Branch | Sacramento, CA | 95815 | $271.6M |
| 132nd & California Branch | Omaha, NE | 68154 | $269.8M |
| West Army Trail Road Branch | Carol Stream, IL | 60188 | $267.9M |
| Salt Lake City Branch | Salt Lake City, UT | 84111 | $266.5M |
| 82nd and Division Branch | Portland, OR | 97206 | $265.9M |
| Essington and Black Road Facility | Joliet, IL | 60435 | $254.6M |
| Middleton Branch | Middleton, WI | 53562 | $243.6M |
| Visalia Branch | Visalia, CA | 93277 | $239.5M |
| West Dempster Branch | Niles, IL | 60714 | $234.1M |
| Burr Ridge Branch | Burr Ridge, IL | 60527 | $229.1M |
| Woodstock Branch | Woodstock, IL | 60098 | $227.4M |
| West Irving Park Road Branch | Chicago, IL | 60634 | $221.5M |
| Harris Bk Frankfort Branch | Frankfort, IL | 60423 | $220.8M |
| Schaumburg Branch | Schaumburg, IL | 60194 | $220.2M |
| Mequon Branch | Mequon, WI | 53092 | $219.4M |
| New Lenox Branch | New Lenox, IL | 60451 | $219.3M |
| Montgomery Street Branch | San Francisco, CA | 94111 | $211.9M |
| Villa Park Trust and Savings Branch | Villa Park, IL | 60181 | $209.1M |
| Downtown Sarasota Branch | Sarasota, FL | 34236 | $207.3M |
| Cedarburg Branch | Cedarburg, WI | 53012 | $202.7M |
| Napa Branch | Napa, CA | 94558 | $199.3M |
| Elm Grove Branch | Elm Grove, WI | 53122 | $197.7M |
| Park Ridge - Busse Hwy Branch | Park Ridge, IL | 60068 | $197.2M |
| Harris Bank Darien Branch | Darien, IL | 60561 | $196.5M |
| Randall Road Drive-In Facility | St. Charles, IL | 60174 | $194.9M |
| East Lake Street Branch | Bloomingdale, IL | 60108 | $194.6M |
| Plainfield Nlsb Branch | Plainfield, IL | 60544 | $193.0M |
| Harris Bk Bartlett Branch | Bartlett, IL | 60103 | $189.9M |
| West Bend Main Branch | West Bend, WI | 53095 | $188.5M |
| Chicago Branch | Chicago, IL | 60638 | $184.3M |
| Orland Park Branch | Orland Park, IL | 60462 | $184.0M |
| Marshfield | Marshfield, WI | 54449 | $183.9M |
| Des Peres Branch | Des Peres, MO | 63131 | $182.8M |
| Pasadena Main Branch | Pasadena, CA | 91101 | $182.3M |
| 826 East Ninth Street Branch | Lockport, IL | 60441 | $175.9M |
| Sun City West Branch | Sun City West, AZ | 85375 | $175.5M |
| Tucson - Main | Tucson, AZ | 85704 | $174.7M |
| Harris Bank Algonquin Branch | Algonquin, IL | 60102 | $174.2M |
| Fox Point Branch | Fox Point, WI | 53217 | $172.5M |
| Harris Bk Palatine Na Branch | Palatine, IL | 60067 | $172.0M |
| Crystal Lake Branch | Crystal Lake, IL | 60014 | $171.5M |
| West Side Facility | Joliet, IL | 60435 | $169.9M |
| Oak Creek Branch | Oak Creek, WI | 53154 | $166.6M |
| Brentwood Branch | Brentwood, CA | 94513 | $165.2M |
| Ruby Isle Branch | Brookfield, WI | 53005 | $164.1M |
| Naperville Branch | Naperville, IL | 60564 | $164.0M |
| Richfield Office | Richfield, MN | 55423 | $162.6M |
| Harris Bk Oakbrook Terrace Branch | Oakbrook Terrace, IL | 60181 | $161.8M |
| St. Louis Park Banch | Minneapolis, MN | 55416 | $158.7M |
| High Point Branch | Madison, WI | 53717 | $158.7M |
| Eagle River | Eagle River, WI | 54521 | $157.5M |
| Santa Cruz Branch | Santa Cruz, CA | 95060 | $157.4M |
| Brighton Commons Facility | Naperville, IL | 60540 | $156.9M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 16571) · FFIEC NIC profile (RSSD 75633)