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Iowa County
Cerro Gordo County, Iowa
Mason City - the River City that inspired The Music Man - from Meredith Willson's Mason City birthplace (the composer and lyricist born in Mason City in 1902 based River City, Iowa - the fictional setting of The Music Man - on his hometown, and the show's characters, band culture, and small-town Iowa life reflect his Mason City childhood - the Music Man Square museum and the annual North Iowa Band Festival celebrate the connection) to Mason City's Frank Lloyd Wright architecture (the Historic Park Inn Hotel - the only remaining Wright-designed hotel still in operation in the world - and the Stockman House are two of Frank Lloyd Wright's Prairie Style masterworks, making Mason City an important architectural destination) and Clear Lake's Buddy Holly crash site.
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Office: Cerro Gordo County Emergency Management – 220 N. Washington Avenue, Mason City, IA 50401. Hours: Mon-Fri 8 AM-4:30 PM.
Sheriff: Cerro Gordo County Sheriff’s Office (Law Enforcement Center) – 17262 Lark Avenue, Mason City, IA 50401 | (641) 421-3000 (Patrol/Communications) | (641) 421-3149 (Civil) | (641) 421-3019 (Jail). Primary law enforcement for all rural areas plus Plymouth, Rock Falls, Dougherty, Swaledale, Thornton, and Meservey. Hours: Mon-Fri 8 AM-4:30 PM (Patrol/Jail 24/7).
Notes: For an active emergency, call 911.
Roads & Utilities
ROADS & TRANSPORTATION
Roads: I-35 and US-18 serve Mason City, the county seat, in north-central Iowa.
Notes: Cerro Gordo County was established in 1851.
Business & Permits
BUILDING & PERMITS
Office: Cerro Gordo County Courthouse – 220 N. Washington Avenue, Mason City, IA | (641) 421-3101.
Notes: Mason City is genuinely famous as the birthplace and inspiration for Meredith Willson’s beloved Broadway musical “The Music Man.” Robert Meredith Willson was born in Mason City on May 18, 1902 – reportedly the largest baby born in Iowa at the time, at over 14 pounds – and grew up to become a musician, composer, and Broadway legend, later writing “It’s Beginning to Look a Lot Like Christmas” and “May the Good Lord Bless and Keep You” in addition to his Tony Award-winning musical. Willson conceived “The Music Man” in 1949 while reminiscing about his Mason City childhood, calling it “an Iowan’s attempt to pay tribute to his home state”; the show premiered on Broadway in 1957 and its film adaptation premiered locally at Mason City’s Palace Theater on June 19, 1962. Mason City is honored today at Music Man Square, featuring a recreated 1912 “River City” streetscape modeled on the film’s set (with several storefronts representing real Mason City businesses), the Meredith Willson Museum, and Willson’s restored 1895 Queen Anne birthplace and boyhood home next door. Willson died in 1984 and is buried in Mason City’s Elmwood Cemetery; his funeral there reportedly included mourners in Music Man costumes and a barbershop quartet.
Veterans Services
VETERANS SERVICES
Office: Cerro Gordo County Veterans Affairs – confirm current contact via cerrogordo.gov.
Libraries
LIBRARIES
Mason City Public Library (Mason City) – confirm current address/phone via the county library system.
Parks & Recreation
PARKS & RECREATION
Key Assets: Music Man Square, the Meredith Willson Boyhood Home, Lime Creek Nature Center (3501 Lime Creek Road, Mason City), and several Frank Lloyd Wright Prairie School buildings are among the county’s premier heritage and outdoor attractions.
Notes: The genuine, celebrated connection between Mason City and “The Music Man” is among the most beloved pieces of American musical theater history covered anywhere in this project.
GIS & Maps
GIS & MAPS
Appraisal/Parcel Search: Cerro Gordo County Assessor’s Office / GIS – confirm current contact via cerrogordo.gov.
Animal Services
ANIMAL SERVICES
Mason City Stray Animal Shelter – 2750 Birch Drive, Mason City, IA | (641) 424-3617. Humane Society of North Iowa – 2700 S. Birch Drive, Mason City, IA 50401 | (641) 423-6241 | Fax (641) 424-3617 | hsni.org. Founded 1959; no-kill shelter serving a 10-county North Iowa region including Cerro Gordo, Butler, Floyd, Franklin, Hancock, Mitchell, Winnebago, Worth, and Wright counties from a 6,600-square-foot facility.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Office: Cerro Gordo County Environmental – confirm current contact via cerrogordo.gov.
NOTES: Cerro Gordo County is the seventeenth county in Iowa’s Round 3 v2 redo, under the A+ sourced standard established for this project. The genuine, celebrated connection between Mason City and “The Music Man” is among the most beloved pieces of American musical theater history covered anywhere in this project. All contact information above was sourced via web search as of early August 2026 and should be reconfirmed directly with the relevant office before a visit, deadline-sensitive filing, or emergency-adjacent decision.
About Cerro Gordo County
Cerro Gordo County is north-central Iowa’s Music Man and Frank Lloyd Wright county – Mason City inspired Broadway’s most beloved American musical and hosts the only remaining Frank Lloyd Wright-designed hotel still in operation in the world.
Mason City (the county seat, population ~27,000) has two extraordinary cultural claims – Meredith Willson’s River City inspiration and the Historic Park Inn Hotel’s architectural significance. Clear Lake’s Surf Ballroom is where Buddy Holly, Ritchie Valens, and the Big Bopper played their final concert before the 1959 plane crash.
All Services
Browse every category and topic available for this county.
Cerro Gordo County Assessor at 220 N. Washington Avenue, Mason City, IA 50401, phone 641-421-3051. IA assessed at 100% market value with residential rollback.
Courts & Legal
Cerro Gordo County District Court at 220 N. Washington Avenue, Mason City, IA 50401, phone 641-421-3071, handles probate.
Marriage & Vital Records
Marriage licenses, divorce records, and birth & death certificates are handled by the following office(s):
CLERK OF DISTRICT COURT (Court Records, Marriage Licenses)
220 N. Washington Ave., Mason City, IA 50401
(641) 421-3060
Genealogy
County-level record sources
Cerro Gordo County District Court (probate/estate case files – see Probate section above).
The Charles H. MacNider Art Museum and the Dr. G.C. Stockman House (Frank Lloyd Wright design) in Mason City are significant local historical/cultural landmarks.
Local societies
No dedicated Cerro Gordo County genealogical society was confirmed in available directories.
Probate & Estate
Losing someone and having to deal with courts and paperwork at the same time is hard. This section won’t make that easier, but it should tell you what to expect, what it costs, and where to go – so at least you’re not walking in blind.
Where to go
Cerro Gordo County District Court, 2nd Judicial District 220 North Washington Avenue, Mason City, IA 50401 (641) 424-6431
Cerro Gordo County was founded in 1851, named for the Battle of Cerro Gordo. Its seat, Mason City, is nicknamed “River City” and is famous as the inspiration for Meredith Willson’s “The Music Man.”
Step 1: figure out which path applies
Iowa has its own comprehensive probate code (Iowa Code Chapter 633) and has not formally adopted the Uniform Probate Code. Iowa offers several tracks depending on estate size and complexity:
Distribution by Affidavit (“very small estates”) – for estates where the gross value of personal property is $50,000 or less and there is no real estate, available 40 days after death under Iowa Code § 633.356. A sworn affidavit is presented directly to banks and other institutions. No court filing is required.
Small Estate Administration – a simplified probate process under Iowa Code Chapter 635 for estates with a gross value of $200,000 or less, with reduced notice requirements and court costs compared to full administration.
Regular (Full) Probate – standard administration through the district court for larger or more complex estates, which can be independent (unsupervised) or supervised.
Supervised Administration – closer court oversight, typically used for contested estates.
Step 2: filing for formal probate
File a Petition for Probate of Will and Appointment of Executor (if there’s a will) or a Petition for Administration (if intestate) with the Cerro Gordo County District Court.
The court admits the will (if any) and issues Letters Testamentary (with a will) or Letters of Administration (intestate) appointing the personal representative.
Publish notice to creditors; under independent administration, creditors generally have 4 months from the date of first publication to file claims.
The personal representative inventories assets, pays valid debts and expenses, and – under independent administration – largely acts without ongoing court check-ins.
After the creditor period closes and debts are paid, the personal representative distributes assets to heirs or beneficiaries.
File a final accounting/final report; the court closes the estate upon approval.
What it costs
Personal representative fees are capped by statute at 3% of the gross value of the probate estate (excluding life insurance) unless services are itemized; attorney fees follow a similar framework.
Recording fees at the county recorder run about $7 for the first page of a document and $5 for each additional page.
Typical timelines: Distribution by Affidavit – a minimum 40-day wait; independent (unsupervised) probate typically closes in 6-12 months, with the 4-month creditor period as the primary timing constraint.
Probate filings, estate administration, and guardianship matters are handled by the following office(s):
Public Safety & Arrests
Arrest records, inmate search, and law enforcement services are handled by the following office(s):
SHERIFF
220 N. Washington Ave., Mason City, IA 50401
(641) 421-3000
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
COUNTY AUDITOR (Records, Elections, Finance)
220 N. Washington Ave., Mason City, IA 50401
(641) 421-3004
ELECTIONS (County Auditor)
220 N. Washington Ave., Mason City, IA 50401
(641) 421-3004
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Cerro Gordo County Dept of Public Health
(641) 421-9300
Iowa DHHS — Region 2
(800) 338-8366
Iowa Medicaid
(800) 338-8366
MercyOne North Iowa Medical Center (Mason City)
mercyone.org/northiowa (major regional hospital; Level II Trauma)
UnityPoint Health — St. Luke's (Mason City)
unitypoint.org/waterloo
Public Health Information
PUBLIC HEALTH
Office: Cerro Gordo County Public Health – confirm current contact via cerrogordo.gov.
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Last verified June 2026
County Facts
County Seat: Mason City
Population: 43,000
Area: 568 sq mi
Established: 1851
Tier: 3
Public Records
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