State retirement profile · Form 5500

Retirement Plans in Arizona

Employer-sponsored 401(k), pension, and other retirement plans headquartered in Arizona, drawn from DOL Form 5500 filings (plan year 2023).

2,320
Plans
$84.1B
Total assets
#24
By assets

The state in one line

Arizona hosts 2,320 employer-sponsored retirement plans holding $84.1B for 1,221,864 participants, the 24th-largest state by plan assets.

$84.1B
total plan assets
2,320
employer plans
$68,799
avg assets per participant
87%
of plans are 401(k)s
Total Plans
2,320
401(k) Plans
2,019
Participants
1,221,864
Total Assets
$84.1B

What the Form 5500 Data Shows for Arizona

Arizona: 2,320 employer-sponsored plans (2,019 401(k)), $84.1B aggregate assets, 1,221,864 participants. Average plan: $36M; largest is Bechtel Trust & Thrift Plan at $5.7B. DOL Form 5500 methodology + HQ-vs-residence caveats →

A state total like this counts every plan whose sponsor lists a headquarters address in the state on its Form 5500 filing, so the figure reflects where employers are based rather than where their workers live or where the money is ultimately invested. A handful of very large sponsors — a national retailer, a bank, a multi-employer union fund — can dominate a single state's asset total, which is why the average plan size and the largest-plan name matter as much as the headline number. Smaller plans, those with fewer than one hundred participants, file a simplified schedule and are exempt from independent audit, so part of any state total rests on sponsor attestation rather than auditor confirmation. Treat these aggregates as a structural picture of the state's private retirement economy, not as a measure of any single worker's benefit or account.

Largest Plans in Arizona

# Plan Name Type Participants Total Assets
1 Bechtel Trust & Thrift Plan 401(k) 7,448 $5.7B
2 Banner Health Employees 401(k) Plan 401(k) 52,452 $4.3B
3 Pinnacle West Capital Corporation Retirement Plan Defined Benefit (Pension) 5,824 $3.3B
4 Salt River Project Employees' Retirement Plan Defined Benefit (Pension) 4,790 $2.8B
5 Republic Services, Inc. 401(k) Plan 401(k) 28,131 $2.4B
6 Freeport-Mcmoran Inc. Employee Capital Accumulation Program 401(k) 13,105 $2.3B
7 Stantec 401(k) Plan 401(k) 10,719 $2.0B
8 Reliance, Inc. Master 401(k) Plan 401(k) 10,729 $1.5B
9 Asml US Employees' Savings and Retirement Plan 401(k) 7,369 $1.5B
10 Pinnacle West Capital Corporation Savings Plan 401(k) 5,820 $1.5B
11 Freeport Minerals Corporation Retirement Plan Defined Benefit (Pension) 2,597 $1.4B
12 Microchip Technology Incorporated Savings Plan Profit Sharing 6,751 $1.4B
13 Onsemi 401(k) Plan 401(k) 3,121 $1.2B
14 Discount Tire/America's Tire Retirement Plan 401(k) 13,184 $1.2B
15 Salt River Project Employees' 401(k) Plan 401(k) 5,473 $1.2B
16 The Sundt Companies Employee Stock Ownership Plan 401(k) 2,392 $1.1B
17 Honor Health 403(b) Retirement Security Plan Profit Sharing 13,597 $1.0B
18 Sequoia One 401(k) Plan 401(k) 35,977 $1.0B
19 Desert States Employers & Ufcw Unions Pension Plan Other 19,139 $1.0B
20 Gen Digital Inc. 401(k) Plan 401(k) 1,209 $996M
21 Carlisle, LLC Employee Incentive Savings Plan 401(k) 6,890 $829M
22 Vensure Employer Services, Inc. 401(k) Profit Sharing Plan 401(k) 34,972 $798M
23 Insight Enterprises, Inc. 401(k) Plan 401(k) 7,240 $795M
24 Knight-Swift Transportation Holdings Inc. Retirement Plan 401(k) 23,899 $789M
25 Blue Yonder, Inc. 401(k) Plan 401(k) 1,327 $623M

Nearby States by Retirement Plan Footprint

States ranked adjacent to Arizona by total retirement plan assets.

Frequently Asked Questions

How many retirement plans are in Arizona?
Arizona has 2,320 employer-sponsored retirement plans as reported in 2023 DOL Form 5500 filings, including 2,019 401(k) plans.
What are the total retirement plan assets in Arizona?
Retirement plans in Arizona hold $84.1B in total assets, covering 1,221,864 participants. The average plan holds $36M in assets.
What is the largest retirement plan in Arizona?
The largest retirement plan in Arizona is Bechtel Trust & Thrift Plan with $5.7B in total assets and 7,448 participants.
How does Arizona compare to other states for retirement plans?
You can compare Arizona's retirement plan statistics against all 50 states on the States page. Rankings are based on total assets, plan count, and participant coverage from DOL Form 5500 data.

Explore PlainRetire

Source: U.S. Department of Labor, EBSA Form 5500 public disclosure dataset. Shows the top 25 plans headquartered in Arizona from the 5,000 largest plans nationally. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) — state is the plan sponsor's headquarters state as recorded on the Form 5500 filing.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.

Why Form 5500 Data Matters for Retirement Planning

Form 5500 is the annual return that virtually every private-sector retirement plan in the United States files with the Department of Labor. The filing covers funding, participant counts, plan investments, fees, service providers, and corrective contributions. Because the data is collected for regulatory oversight rather than marketing, it is one of the most consistent windows into the retirement economy: the same questions are asked of plans across all industries and all states, year after year. That consistency makes it possible to compare plans, sponsors, and markets on equal footing — a kind of comparability that voluntary survey data and vendor brochures cannot provide.

PlainRetire reorganizes the Form 5500 universe so a participant, employer, or analyst can ask everyday questions of the dataset without reading thousands of pages of agency documentation. Browsing by state surfaces concentration patterns: where pension assets sit, which states host the largest 401(k) sponsors, where retirement coverage trails the national average. Browsing by industry reveals the structural difference between sectors that historically relied on defined-benefit pensions and sectors that adopted defined-contribution plans early. Browsing by plan size highlights both the largest sponsors — typically Fortune 500 employers and multi-employer Taft–Hartley funds — and the long tail of small plans that collectively cover millions of workers.

What This Hub Page Aggregates

Each hub page on PlainRetire is a navigable index into the underlying database. The page shows summary counts, the most recent Form 5500 vintage, and direct links to individual plan detail pages. Detail pages carry the canonical filings, schedules where applicable, and audit trail back to the DOL's EFAST2 disclosure portal. Where the underlying dataset supports it, hub pages also expose key aggregates: total participant counts, aggregate assets, plan-type breakdowns (401(k), pension, profit-sharing, ESOP), and changes over the most recent reporting period.

Plan data is updated as DOL releases new annual Form 5500 datasets. Filings have a roughly seven-month lag from plan year end, so the most recent vintage typically reflects the previous full calendar year. This lag is inherent to the disclosure regime — plans are given time to gather audit reports and service-provider statements — and PlainRetire reflects the timing transparently rather than backfilling estimates.

Reading the Data With Appropriate Caveats

Aggregate numbers are useful for trend-spotting and structural comparison; they are less useful for decisions about a specific plan. The participant count for a state, for instance, includes both very large plans (which dominate the total) and very small plans (which influence median but not mean). When evaluating a specific employer's plan, drill into the plan detail page and consider plan-type, asset-mix, fee structure, and audit history — these details are flattened in any hub-level aggregate. Where regulatory updates change the categorization of a plan, PlainRetire preserves the historical filing alongside the most recent one so longitudinal analyses remain valid.