The gateway
to Jefferson County.
Arnold is where the metro gives way to Jefferson County. The I-55 and Highway 141 split runs through the city, and the North Jefferson County corridor — Arnold, Imperial, Barnhart — defines the population that hires us here. The legal work is shaped by the county jurisdiction, which means a different circuit court, a different prosecutor’s office, and a different rhythm than the St. Louis County matters we handle for the rest of our practice. The road network produces the bulk of the personal injury and traffic work; the manufacturing and skilled-trades workforce produces the workers’ comp.
Forty minutes north,
on I-55.
From central Arnold, our Florissant office is about forty minutes north — I-55 through the city of St. Louis to I-270, then west to Highway 67. We do not ask Arnold clients to make that drive. Most of the work happens by phone and video, with one or two in-person trips made to Arnold or to the Hillsboro courthouse when the case requires them. Hablamos español.
A different
circuit court.
Two courts decide Arnold matters — the city's Government Center on Jeffco Boulevard plus the Jefferson County Circuit and Probate divisions about twenty-five minutes south on Highway 21 in Hillsboro.
Arnold Municipal Court
2101 Jeffco Boulevard · Arnold, MO 63010
Ordinance violations, traffic citations from I-55, Highway 141, Jeffco Boulevard, and the surrounding network inside city limits, careless-driving citations, and minor misdemeanors.
Jefferson County Circuit Court
300 Main Street · Hillsboro, MO 63050
Arnold felony charges, dissolution proceedings, contested civil suits, and probate cases. About twenty-five minutes south of Arnold on Highway 21. The Jefferson County docket has its own rhythm and its own rules of practice.
Jefferson County Probate Division
300 Main Street · Hillsboro, MO 63050
Arnold estates run through the same probate procedures as the rest of the county. For most Arnold estates we use informal administration paired with revocable trusts and beneficiary deeds drafted years before death.
Verify Before Relying Court addresses, hours, and procedural information above are believed accurate but may change. Verify current details with the court directly — addresses, dockets, filing windows, and clerk hours can change without notice. Statute citations and procedural references on this page were believed accurate at the time of writing; Missouri law changes regularly.
Eight practices,
one firm.
Arnold work tilts toward personal injury from the I-55/Highway 141 corridor, workers’ compensation for the manufacturing and skilled-trades workforce, and traffic and DWI matters from the same road network.
- Personal injury: car wrecks, truck collisions, slip-and-fall, wrongful death — see Personal Injury Lawyer Missouri, car accidents, truck accidents, and wrongful death. No fee unless we recover.
- Workers’ compensation: work injuries, denied claims, permanent disability — see Missouri workers’ comp lawyer.
- Traffic tickets: speeding, careless driving, CDL violations — see Missouri traffic ticket lawyer.
- DWI & DUI defense: both the criminal case and the parallel administrative license proceeding — see Missouri DWI lawyer and the 15-day rule.
- Criminal defense: felony, misdemeanor, drug offenses, assault, weapons, federal — see Missouri criminal defense.
- Estate planning: wills, trusts, powers of attorney, probate — see estate planning attorney Missouri.
- Expungement: sealing eligible misdemeanor and felony records — see Missouri expungement attorney.
- License restoration: hardship petitions and full reinstatement — see license restoration in Missouri.
Why Jefferson County
work runs differently.
Arnold’s population is around 21,000, and the city anchors the North Jefferson County corridor that runs south along I-55 through Imperial and Barnhart. The biggest practical difference between Arnold work and the St. Louis County work that makes up most of our practice is the courthouse jurisdiction. A felony case for an Arnold resident ends up at the Jefferson County Circuit Court in Hillsboro, not at Clayton. The prosecutors are different. The bench is different. The rhythm of the docket is different. None of that is a problem — it is a feature of the practice that has to be understood from the first conversation.
On the personal injury side, the I-55 corridor through Arnold carries heavy commuter and freight traffic. Highway-speed collisions, occasional truck accidents, and the intersection cases at the Highway 141 split are recurring patterns. For workers’ comp, the manufacturing and skilled-trades base in and around Arnold produces lifting, machinery, and fall-from-height claims, alongside the auto-accident-while-working claims that arise in any commuter-heavy population. Hablamos español for clients who prefer Spanish.
Opening questions for an Arnold call: which county the incident happened in (the line between St. Louis County and Jefferson County runs through territory people commute across daily), which police agency responded, whether any citation has a Hillsboro court date or an Arnold Municipal Court date, and what the road-network context was — I-55, Highway 141, or Jeffco Boulevard each carry different fact patterns.
Arnold is close to St. Louis County geographically, but the courthouse is in Hillsboro and the rules of practice are Jefferson County’s. The local familiarity matters — we have been making that drive for years.
Arnold legal FAQ —
straight answers.
The questions Arnold residents and businesses ask most often. General information; specific facts always change the analysis.
What court handles felony cases for Arnold residents?
Felony charges originating in Arnold are filed in the Jefferson County Circuit Court at 300 Main Street, Hillsboro. Initial appearances, preliminary hearings, and bond review are heard there before the case is assigned to a trial division. We appear in Jefferson County regularly.
Where is Arnold’s municipal court located?
The Arnold Municipal Court at City Hall handles ordinance violations. Speeding citations, careless-and-imprudent tickets, accident citations, and minor ordinance matters are heard there rather than at the Jefferson County Circuit Court.
How far is your office from Arnold?
Our office at 580 N. U.S. Highway 67, Suite 4 in Florissant is about 30 minutes south of Florissant via I-270 and I-55. Many Arnold clients meet us in person; others handle the entire matter by phone and video, with in-home signings available for estate planning.
What is the statute of limitations for a Missouri car accident?
Five years from the date of the accident for injury to a person (RSMo §516.120). Wrongful death is three years from the date of death (RSMo §537.100). Earlier action almost always produces a better result — evidence and witness memory fade.
Do you accept Arnold injury cases on a contingency-fee basis?
Yes. Personal injury and wrongful death cases are handled on contingency — you pay a fee only if we recover money on your behalf. The initial consultation is free.
Nearby cities we also serve.
Imperial · Fenton · Festus · Crystal City
See also: Jefferson County · All locations