Market Intelligence › Institutions › The Northern Trust Company

The Northern Trust Company holds $51.5B in deposits across 44 counties in 29 ranked markets and 19 states. Its deposit footprint is highly concentrated: the top three counties (Cook County, Miami-Dade County, Lake County) hold 77% of its deposits, and Illinois accounts for 72% of the total.

Deposit footprint

Total Deposits

$51.5B

June 30, 2025, nominal

Counties

where it holds deposits

Branches

reported offices

Ranked Markets

CSAs / MSAs touched

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Deposits by county

Data as of June 30, 2025 (FDIC Summary of Deposits)

	County	Deposits	County’s % of Bank’s Deposits	Bank’s % of County Deposits	Branches
1.	Cook County, IL	$34.9B	67.7%	7.9%	2
2.	Miami-Dade County, FL	$3.2B	6.1%	1.6%	3
3.	Lake County, IL	$1.5B	2.9%	4.9%	2
4.	Dallas County, TX	$1.1B	2.1%	0.4%	2
5.	Palm Beach County, FL	$887M	1.7%	1.4%	4
6.	Los Angeles County, CA	$779M	1.5%	0.2%	2
7.	Harris County, TX	$678M	1.3%	0.2%	3
8.	Maricopa County, AZ	$639M	1.2%	0.4%	2
9.	Sarasota County, FL	$582M	1.1%	3.1%	1
10.	Dupage County, IL	$548M	1.1%	1.0%	1
11.	San Francisco County, CA	$541M	1.1%	0.2%	1
12.	New York County, NY	$514M	1.0%	0.0%	1
13.	Broward County, FL	$505M	1.0%	0.7%	1
14.	Collier County, FL	$453M	0.9%	2.4%	2
15.	Hillsborough County, FL	$394M	0.8%	0.9%	1
16.	Western Connecticut County, CT	$384M	0.7%	0.6%	1
17.	Indian River County, FL	$380M	0.7%	6.4%	1
18.	Lee County, FL	$375M	0.7%	1.7%	2
19.	Orange County, CA	$358M	0.7%	0.2%	1
20.	Fulton County, GA	$271M	0.5%	0.2%	1
21.	Clark County, NV	$208M	0.4%	0.2%	1
22.	Pima County, AZ	$198M	0.4%	1.1%	1
23.	Martin County, FL	$188M	0.4%	2.5%	1
24.	Denver County, CO	$184M	0.4%	0.3%	1
25.	San Diego County, CA	$171M	0.3%	0.1%	1
26.	Manatee County, FL	$167M	0.3%	1.5%	1
27.	King County, WA	$166M	0.3%	0.2%	1
28.	Oakland County, MI	$165M	0.3%	0.2%	1
29.	San Mateo County, CA	$164M	0.3%	0.4%	1
30.	Santa Barbara County, CA	$143M	0.3%	1.0%	1
31.	Philadelphia County, PA	$138M	0.3%	0.2%	1
32.	Suffolk County, MA	$137M	0.3%	0.0%	1
33.	Milwaukee County, WI	$115M	0.2%	0.2%	1
34.	Hennepin County, MN	$74M	0.1%	0.1%	1
35.	Cuyahoga County, OH	$72M	0.1%	0.1%	1
36.	Marin County, CA	$68M	0.1%	0.5%	1
37.	St. Louis County, MO	$61M	0.1%	0.1%	1
38.	Travis County, TX	$58M	0.1%	0.1%	1
39.	Kent County, MI	$44M	0.1%	0.2%	1
40.	District Of Columbia County, DC	$38M	0.1%	0.1%	1
41.	Duval County, FL	$25M	0.0%	0.0%	1
42.	Tarrant County, TX	$22M	0.0%	0.0%	1
43.	Monroe County, FL	$4M	0.0%	0.1%	1
44.	Pinellas County, FL	$0M	0.0%	0.0%	1

Deposits are as reported to the FDIC at branch level, June 30, 2025, and are nominal. “County’s % of Bank’s Deposits” is this county’s share of the institution’s total deposits; “Bank’s % of County Deposits” is this institution’s deposits as a percent of all deposits booked in that county. Counties within a Combined or Metropolitan Statistical Area link to their full profile; other counties are shown for completeness.

All 293 markets and the 1,533 counties within a CSA or MSA are covered in the Market Intelligence resource. See the methodology for how each figure is built and when to expect updates.