CDP
Hilmar-Irwin
Hilmar-Irwin is a Census-designated community in Merced County covering about 3.927 square miles. It is not an incorporated city. The county is usually the first government layer, while utilities and special districts can follow their own boundaries.
Starting point
Start with the county unless an official district says otherwise.
A Census-designated place is a useful local name, but it usually does not have its own city hall. For permits, records, taxes, courts, and many services, begin with the county layer.
What changes the answer: Special districts, utilities, schools, fire agencies, parks, water agencies, coastal rules, and state maps can still control a specific issue.
How local government works here
The place name, county, and service districts do different jobs.
Hilmar-Irwin is a real community name. It does not create a city government. The county and local districts divide the public work for the address.
The community name is not city hall
Hilmar-Irwin is what the Census calls a census-designated place. It normally has no mayor, city council, or city permit desk. Start with Merced County for county work.
The county handles the local government lane
County planning and building usually handle an address outside a city. The county also handles property value, tax bills, records, courts, elections, health, and many aid programs.
Services may come from separate districts
Water, sewer, fire, schools, parks, roads, trash, and power can follow lines that do not match the place name. Check the bill, parcel, or district map before assuming the county provides the service.
Countywide story
San Luis Refuge lets Merced County slow down for wildlife
San Luis National Wildlife Refuge has auto tour routes for wetland views, winter birds, tule elk, and quiet wildlife watching.
Read the full explanation2025 population
Not available
Land area
3.927 sq mi
Water area
0 sq mi
Local front desk
Start with the task in front of you.
Hilmar-Irwin is a Census-designated place, not an incorporated city. Start with Merced County; utilities and special districts can still have their own boundaries.
- Property Open the property-tax path
Assessed value, exemptions, tax bills, and appeals
Merced County assessor handles value and exemptions. The clerk of the board handles a formal value appeal. The tax collector handles the bill, payment, and penalties.
- Records Open the records path
Deeds, birth and death records, marriage records, and name changes
Merced County recorder is the usual deed and public-record door. Vital-record access depends on the record and year. A legal name change or divorce decree can involve Superior Court.
- Property work Open the local-office path
Building permits, ADUs, zoning, code, water, and septic
Start with Merced County planning or building. Water, sewer, fire, and other special districts may have a separate approval.
- Housing Open the housing path
Rent rules, repairs, notices, and eviction papers
Start with a local rent, housing, or code office if one serves the address. Court papers go to the Superior Court self-help path, and the deadline on the papers keeps running.
- Household help Open the benefits path
CalFresh, Medi-Cal, CalWORKs, General Assistance, and IHSS
Merced County social-services agency is the main local door. Coverage, food, cash aid, and in-home support remain separate programs with separate notices.
- Public health Open the health path
Vaccines, disease reporting, health records, and local health programs
Merced County public health is the local health jurisdiction. Health coverage and benefits still use separate program doors.
- Business Open the business path
Business setup, seller's permits, local licenses, and regulated work
State filings and tax accounts do not replace county zoning, licensing, building, fire, or health approvals for the address.
- Neighborhood services Open the local-office path
Potholes, streetlights, graffiti, trash, and service requests
Start with Merced County for county-maintained roads and services. Caltrans, utilities, transit systems, waste haulers, and special districts can own separate reporting paths.
- School and care Open the school and care path
School enrollment, student records, and child-care checks
The school district handles assignment and records. County offices can help with some family services, while the state licenses child-care facilities.
- Parking Open the parking path
Residential, guest, overnight, and local parking permits
A local parking permit is separate from a citation, moving ticket, and toll notice. Match the permit to the address, vehicle, district, or parking facility.
- Tickets Open the ticket path
Traffic court, parking citations, and toll notices
Merced County Superior Court handles traffic court matters. A city or issuing agency handles parking. The toll operator handles toll notices.
- Safety Open the emergency path
Emergency alerts, evacuations, smoke, roads, and power
Use the county or city alert system for local warnings. Follow the local emergency office for evacuation wording, then use the state fire, smoke, road, and utility sources for the matching layer.
Official county doors
Open the office that owns the next step.
California's statewide directories and verified official corrections supply the county-specific links below. Property and recorder links open the state directory because several county offices can share one task.
Merced County
Practical notes
Office, map, permit, and paperwork notes for Hilmar-Irwin
County practical note · Home and property · Reviewed July 4, 2026
Los Banos street reports ask for the nearest cross street
Los Banos has a street issue form for problems like illegal dumping, potholes, and streetlights, and the form works best with a cross street or pole detail.
County practical note · Home and property · Reviewed July 4, 2026
Merced utility and street questions still use phone lanes
Merced's important-number page separates billing, water, sewer, storm drains, street maintenance, refuse, trees, signals, and other Public Works questions by phone line.
County practical note · Rules and licenses · Reviewed July 3, 2026
Merced Civic Access handles permits and licenses
Merced Civic Access handles permit, planning, and business license applications, with tools for fees, contractors, permits, inspections, and project status.
County practical note · Home and property · Reviewed July 4, 2026
Merced refuse questions start with city limits
Merced Refuse handles solid waste collection inside city limits, including residential and commercial service, street sweeping, leaf collection, alley cleanup, tire amnesty, and bulky drop-off.
County practical note · Rules and licenses · Reviewed July 1, 2026
Winter wood burning in the Valley gets a daily status
In the San Joaquin Valley, residential wood-burning rules can change by county and day during the winter Check Before You Burn season.
County practical note · Cars and driving · Reviewed July 6, 2026
Merced riders should know The Bus route map
The Bus gives Merced County a fixed-route and paratransit system, with Merced, Atwater, Los Banos, and intercity route groups listed together.
Stories & Notes
Stories and local context in Merced County
County place story · History and culture
Merced's old courthouse is now a county memory keeper
The Merced County Courthouse Museum sits in an 1875 courthouse that served the county for a century before becoming one of Merced's key history stops.
County place story · History and culture
Dos Palos has a name story locals still care about
Dos Palos traces its name to two trees, then to a farm colony, a nearby Colony Center, and a local pronunciation that lasted for generations.
County place story · History and culture
Gustine's name and museum point back to Henry Miller country
Gustine grew from railroad, dairy, and Henry Miller ranch land, with the Gustine Museum keeping early town, courthouse, jail, and farm-country history together.
County place story · History and culture
Livingston turns sweet potato harvest into a family weekend
Livingston's Sweet Potato Festival gives the Merced County farm town a harvest-centered tradition with food, family events, and local pride.
County place story · History and culture
Castle Air Museum keeps Atwater's air-base story visible
Castle Air Museum gives Atwater a big aviation-history stop, with historic aircraft on original Castle Air Force Base ground.
County place story · Outdoors
Applegate Park Zoo gives Merced a small rescue-animal stop
Merced Applegate Zoo sits inside Applegate Community Park and focuses on animals that need care, including California native species from wildlife rescue situations.
County place story · Outdoors
Merced National Wildlife Refuge makes wetlands easy to see by car
Merced National Wildlife Refuge has wetlands, grasslands, vernal pools, riparian areas, a five-mile auto tour route, nature trails, cranes, and geese on the Pacific Flyway.
County place story · Outdoors
San Luis Reservoir is both a park day and a water-project clue
Near Los Banos, San Luis Reservoir is a state recreation area and a major offstream reservoir tied to California's water system.