Crystal City has sued the state of Missouri in an attempt to block a new annexation law from taking effect Friday, arguing the measure could choke off the kind of growth that brought a $1 billion manufacturing plant to the city's former airport site. The lawsuit, filed in Cole County Circuit Court, asks a judge to issue an injunction against restrictions that would limit how much land Jefferson and St. Charles County municipalities can annex.
The city filed its case on Wednesday, asking Circuit Judge Daniel Green to block the law before the new restrictions take effect Friday, according to the St. Louis Post-Dispatch. Under the new law, Jefferson County cities, towns and villages can only annex land if 75 percent of the property is contiguous with their existing border, and municipalities are limited to annexing property once every two years. St. Charles County cities face a similar but less restrictive rule, needing just 15 percent boundary contiguity to annex land.
Governor Mike Kehoe signed the measure into law on July 12, but the underlying bill started out as something else entirely. House Bill 2818 was originally written to let St. Joseph annex a city-owned airport that sits outside the city's limits and isn't contiguous with its borders, a straightforward fix for one city's airport property, according to the Office of Governor Mike Kehoe. Lawmakers later amended the bill to tack on the county-specific annexation restrictions that now have Crystal City in court.
A Constitutional Fight Over How the Bill Was Built
Crystal City's legal argument leans heavily on process rather than policy. The lawsuit contends the added restrictions share no mechanism, benefit or rationale with the bill's original purpose of freeing up St. Joseph's airport annexation, a mismatch that could run afoul of Article III of the Missouri Constitution. Section 21 of that article bars lawmakers from amending a bill during passage in a way that changes its original purpose, while Section 23 requires that a bill cover only one subject, as laid out by the Supreme Court of Missouri.
The vote counts hint at how contentious the add-on proved to be. The House recorded seven votes against the amended measure, while the Senate ultimately approved it unanimously. State Representative Bill Lucas, who represents a district within Jefferson County, was among the House members who voted no. Lucas said he opposed the proposal because it could stop his hometown from expanding.
Mayor Says Law Threatens the City's Business Pipeline
Crystal City Mayor Mike Usher said the new law will hinder growth and could hurt the city's ability to attract new businesses. The stakes are not hypothetical for Crystal City, a Mississippi River community of 4,740 residents across 4.52 square miles, per the U.S. Census Bureau, and part of what locals call the Twin Cities region alongside neighboring Festus.
Back in October 2022, the Missouri Department of Economic Development announced a deal with fiber-cement manufacturer James Hardie Industries to build a 1-million-square-foot plant, dubbed Project Redbird, at the former Festus Memorial Airport site. That $1 billion project, which is expected to create 240 jobs, required complex municipal utility and boundary agreements that were only finalized this year. Deals of that scale depend on a city's ability to annex and manage land on its own timeline, which is exactly what Crystal City argues the new law would undercut.
County Officials Wanted the Restrictions, Governor Didn't Veto Them
The push for tighter annexation rules didn't come out of nowhere. Jefferson County officials unsuccessfully lobbied Governor Kehoe to veto the portion of the legislation affecting the county, having sought a unified system for managing growth countywide rather than city-by-city expansion. State Senator Mary Elizabeth Coleman, who represents Arnold, championed the Jefferson County provisions and said they are needed to help the county control growth.
Coleman also introduced companion legislation, Senate Bill 1344, during the 2026 session to authorize an 11-member Jefferson County Boundary Commission, according to the Missouri Senate. Jefferson County already has its own boundary commission, which is responsible for reviewing proposals affecting the boundaries of incorporated and unincorporated areas in the county. Supporters of the new two-year waiting period on annexations argue it would give county officials time to assess how new development affects traffic volume, emergency-service needs and water runoff, pressures that have mounted as Jefferson County has grown into Missouri's sixth most populous county, with an estimated 233,100 residents in 2025.
Other Jefferson County Cities Watching Closely
Crystal City's fight has drawn attention from neighboring municipalities that share its frustration with the state-imposed restrictions. In May, Arnold Mayor Bill Moritz publicly urged the Jefferson County Council to oppose the annexation amendment and hosted a meeting of area mayors at Crystal City's municipal building to organize regional pushback, according to The Jefferson Review. After Kehoe signed the bill in July, officials in other Jefferson County communities, including Byrnes Mill, held public discussions about whether to support litigation against the state, the outlet reported separately.
Missouri isn't without precedent for county-level boundary oversight. St. Louis County created the state's first municipal boundary commission under state statute in 1989 to evaluate boundary adjustments and prevent fragmented annexation across its nearly 90 incorporated towns, a model that has faced its own constitutional challenges over the years, per the St. Louis County Boundary Commission. Whether Cole County's Judge Green will halt Missouri's newest annexation restrictions before they take effect Friday remains to be seen, but Crystal City's case sets up a fresh test of how far lawmakers can stretch a single bill's original purpose.
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