Ayni — Analysis — Wyoming Is the Least Populated State in the Country. Its Part-Time Legislature Wrote the Crypto Banking Rules Congress Still Hasn't.

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Wyoming Is the Least Populated State in the Country. Its Part-Time Legislature Wrote the Crypto Banking Rules Congress Still Hasn't.

Wyoming has been the least populated state in the country for decades -- 588,753 residents in the latest Census estimate -- governed by a 90-member legislature that is explicitly part-time, with no personal staff and no district offices. That same body has passed more than 20 blockchain and digital-asset laws since 2018, more than any other state or the U.S. Congress. The push had a specific author: Caitlin Long, a University of Wyoming graduate who spent 22 years on Wall Street (Salomon Brothers, Credit Suisse, running Morgan Stanley's pension business) before winning a Wyoming legislative seat in 2018 and writing the laws herself. The state had its own reason to listen -- coal severance tax revenue had already fallen from more than $290 million a year in 2011-2012 to $172 million by 2022, on a trajectory toward $114 million by 2028. Wyoming created the Special Purpose Depository Institution charter in 2019; Kraken Bank became the first SPDI in September 2020, Long's own Avanti Bank & Trust (later renamed Custodia Bank) the second a month later. But a state charter can't force federal cooperation: Custodia sued the Federal Reserve for a master account in 2022, lost at the district court in 2024, and lost a full Tenth Circuit rehearing in April 2026, ending a five-year fight one dissenting judge called "akin to a death sentence" for a bank built this way. Meanwhile, in a completely unrelated corner of the same state, Wyoming's zero-income-tax structure is paying off spectacularly: Teton County (Jackson Hole) posted the highest per-capita income of any US county in 2024, over seven times the average of Wyoming's other 22 counties.

Start with the size of the legislature that did this. Wyoming has been the least populated state in the country for decades -- 588,753 residents in the latest Census estimate^[1] -- governed by a 90-member legislature, 30 in the Senate and 60 in the House, that is explicitly part-time: no personal staff, no district offices, not the members' primary job.^[2] That same body has passed more than 20 blockchain and digital-asset laws since 2018 -- more than any other state legislature, and more than Congress has managed on the same subject.^[5]

The push had a specific author, not a generic pro-business mood. Caitlin Long -- University of Wyoming class of 1990, then 22 years on Wall Street: Salomon Brothers, Credit Suisse, and running Morgan Stanley's pension business from 2007 to 2016 -- returned to her home state, won a seat in its legislature for the 2018-2019 term, co-founded the Wyoming Blockchain Coalition, and used the position to write the laws herself rather than lobby for them from outside.^[3] The state had its own reason to listen. Coal severance tax revenue -- more than $290 million a year in 2011-2012 -- had already dropped to $172 million by 2022, on a path toward a projected $114 million by 2028, as the state's coal production fell by nearly half since 2008.^[4]

588,753Wyoming's population -- the smallest of any US state

2019the year Wyoming became the first state to treat digital assets as property under the UCC

20+blockchain and digital-asset laws Wyoming's part-time legislature has passed since 2018

What that legislature actually built is a real bank charter, not just a friendly statute. Wyoming created the Special Purpose Depository Institution (SPDI) charter in 2019 -- a fully-reserved bank structure built specifically for crypto custody and asset servicing.^[6] Kraken Bank became the first SPDI in September 2020; Long's own Avanti Bank & Trust, later renamed Custodia Bank, became the second a month later.^[6] Kraken Bank is still filing regulatory call reports as of March 2026, one of a small handful of chartered digital-asset banks operating anywhere in the country.^[7]

Custodia's own experience shows what a state charter can't do alone. Custodia sued the Federal Reserve in June 2022 after the Kansas City Fed sat on its master-account application -- the direct pipe into the Fed's own payment system every bank ultimately needs -- and the Fed denied the application outright in January 2023.^[8] A district judge ruled against Custodia in March 2024; a Tenth Circuit panel affirmed 2-1; and in April 2026 the full appeals court denied a rehearing 7-3, ending a five-year legal fight over whether a state-chartered bank is entitled to the same federal plumbing every other bank gets automatically.^[9] One dissenting judge, Timothy Tymkovich, called the denial "akin to a death sentence" for a bank built this way.^[9] Wyoming can charter a bank. It cannot force the Federal Reserve to plug it in.

The same gatekeeping power this site has already traced at the federal level This site has already found the federal government shaping which companies succeed through direct equity stakes, and through a classified venture fund most of whose investments were never announced. Custodia's fight is the same power in a third form: not funding a company or owning a piece of it, but deciding which legally chartered banks get to plug into the payment system at all -- a gate a state legislature, however fast it moves, cannot open on its own. The government-equity piece is here; the In-Q-Tel piece is here.

In a completely unrelated corner of the same state, Wyoming's zero-income-tax structure is paying off spectacularly. Teton County -- Jackson Hole -- posted the highest per-capita income of any county in the country in 2024: $532,903, up 6.5% from the year before and more than seven times the average of Wyoming's other 22 counties combined.^[10] With just 4% of Wyoming's population, Teton County residents earned 23% of the state's total personal income and close to half its total investment income in 2023^[10] -- pulled in substantially by what the state's own reporting calls "extraordinarily wealth-friendly tax and trust laws," the same zero-income-tax foundation aimed at a completely different kind of resident than the SPDI charter or the DAO statute.

Ranching built Wyoming's identity, and coal financed its government for most of the last century. One legislature and one tax structure produced two entirely separate bets on what comes next -- a crypto-banking framework that just lost its five-year fight for federal plumbing, and a wealth-management advantage that's making one mountain county richer, per person, than anywhere else in America. What replaces coal doesn't look like it's going to be one thing.

The takeaway Wyoming's 90-member, part-time, unstaffed citizen legislature has passed more than 20 blockchain and digital-asset laws since 2018 -- more than any other state or Congress -- driven substantially by one architect: Caitlin Long, a 22-year Wall Street veteran (Salomon Brothers, Credit Suisse, Morgan Stanley) who won a Wyoming legislative seat in 2018 and wrote the laws directly. The motivation was concrete: coal severance tax revenue, the state's traditional funding base, fell from over $290 million a year in 2011-2012 to $172 million by 2022, headed toward a projected $114 million by 2028. Wyoming's 2019 Special Purpose Depository Institution charter produced Kraken Bank (2020) and Long's own Custodia Bank (2020) -- but Custodia's five-year legal fight for a Federal Reserve master account ended in an April 2026 loss, proving a state charter alone can't force federal cooperation. Separately, Wyoming's zero-income-tax structure is working spectacularly for a different population: Teton County (Jackson Hole) had the highest per-capita income of any US county in 2024, at $532,903 -- more than seven times the average of Wyoming's other 22 counties. Ranching built Wyoming's identity and coal financed its government for a century; what replaces coal may not be one thing at all.

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