Merced County Unincorporated, California Zoning Map
Zoning, overlays and hazards on every parcel — and an answer to what the code actually lets you build. Compiled from current zoning data for all 38 districts.
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What's in the Merced County Unincorporated dataset
Every field below is available for any Merced County Unincorporated parcel, on the map and through the AI.
Zoning
- District code & full name
- Parcel boundary & APN
- All 38 districts mapped
Building controls
- Maximum building height
- Floor area ratio (FAR)
- Front setback
- Side setback
Overlays, hazards & AI
- Flood hazard & environmental layers
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- Powered by live parcel data
Where uses are permitted in Merced County Unincorporated
Share of Merced County Unincorporated's zoned land where each use is permitted.
- Single-family
- 99.48%
- Multi-family
- 98.11%
- ADU
- 1.67%
- Two-family
- 0.05%
- Retail
- 98.23%
- Eating & drinking
- 0.77%
- Office
- 98.08%
- Hotel / motel
- 0.52%
- Industrial
- 97.65%
- Storage & warehouses
- 98.88%
- Short-term rental
- 99.42%
Merced County Unincorporated, California Zoning Districts: What Do They Mean?
Zoning districts are areas regulated by specific laws that determine land use, building types, and development rules. Each district below shows its zone type and which uses it permits.
| Zone Code | Category | Area | Details |
|---|---|---|---|
A-1 General Agriculture | - | 539,072.6 ac | Standards & uses → |
A-2 Exclusive Agriculture | - | 662,358.2 ac | Standards & uses → |
BP Business Park | - | 77.8 ac | Standards & uses → |
C-1 Neighborhood Commercial | - | 101.6 ac | Standards & uses → |
Showing 4 of 38 districts
Start from what you're trying to build
Each one runs against the live Merced County Unincorporated dataset and returns the districts, standards and approvals involved.
What should developers know about Merced County Unincorporated zoning?
Merced County Unincorporated is dominated almost entirely by agriculture, with A-2 (Exclusive Agriculture, 662,358.15 acres) and A-1 (General Agriculture, 539,072.61 acres) together accounting for well over 1.2 million acres of the county's unincorporated land. These two districts alone define the county's fundamental character as one of California's premier farming regions in the San Joaquin Valley, producing dairy, row crops, tree nuts, and poultry. The scale of agricultural zoning means that only a narrow band of land along highways and near unincorporated communities is allocated to urban uses.
The most significant non-agricultural designation is H-I-C (Highway Interchange Center, 4,841.39 acres), which targets commercial and business park development at freeway interchanges along Highway 99 and Interstate 5. Manufacturing land includes M-1 (Light Manufacturing, 2,100.21 acres) and M-2 (General Manufacturing, 852.96 acres), primarily supporting agricultural processing and the former Castle Air Force Base redevelopment area. The Castle Specific Plan zones (C-SPZ series) and Fox Hill Specific Plan zones (FH-SPZ series) represent the county's major master-planned development areas, with Castle SPZ-Aviation Manufacturing covering 1,770.66 acres. Commercial districts - C-2 (General Commercial, 1,195.59 acres), C-1 (Neighborhood Commercial, 101.62 acres), and C-P (Commercial and Professional Office, 30.46 acres) - are modest in the context of the county's total acreage. Building controls include FAR, density, coverage, pervious, lot width, and all setback categories.
This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
Merced County Unincorporated zoning: frequently asked questions
What is the A-2 Exclusive Agriculture zone and how does it restrict development?
A-2 (Exclusive Agriculture, 662,358.15 acres) is the county's most restrictive agricultural designation, intended to permanently preserve prime farmland from conversion to non-agricultural uses. Residential uses are generally limited to one dwelling per parcel for the farm operator; subdivision and urban uses are not permitted. The combination of A-2 zoning with Williamson Act contract status on many parcels in Merced County creates a durable legal barrier to residential or commercial conversion.
What is the Castle Specific Plan and what development does it support?
The C-SPZ series covers the former Castle Air Force Base and adjacent areas, with the Aviation Manufacturing district (C-SPZ-AM) at 1,770.66 acres being the largest component. This Specific Plan was created to guide the adaptive reuse of the former military installation into a civilian airport, business park, and mixed-use community. C-SPZ-C (Commercial, 189.61 acres) and C-SPZ-I (Institutional, 433.19 acres) support the civic and commercial uses within the Castle area. The plan is administered by the Castle Airport Aviation and Development Authority.
How does the H-I-C (Highway Interchange Center) zone work for commercial development?
The H-I-C district (4,841.39 acres) designates land at freeway interchanges for commercial, retail, hospitality, and business park development - the county's primary mechanism for capturing commercial tax base from highway traffic. This zone is the most relevant target for gas stations, truck stops, restaurants, hotels, and logistics-adjacent commercial development in the unincorporated county. Location along specific interchange nodes is a prerequisite, and development requires compliance with the county's interchange design standards.
Does Merced County unincorporated area have any provisions for rural residential or ranchette development?
The county's agricultural zoning framework is primarily intended to preserve farmland rather than facilitate rural residential development. The Fox Hill Specific Plan (FH-SPZ series) includes single-family residential districts (R-1-4500, R-1-5000, R-1-6000) that establish a planned residential community within the unincorporated area. Outside designated Specific Plan areas, large-parcel residential is very limited in both A-1 and A-2 zones, where farm dwelling rights are the primary residential accommodation.
Are there opportunities for agricultural processing or food manufacturing facilities in Merced County?
Yes - M-1 (Light Manufacturing, 2,100.21 acres) and M-2 (General Manufacturing, 852.96 acres) are the primary industrial zones and are well-suited for food and dairy processing, cold storage, grain handling, and agricultural support industries consistent with the county's farm economy. The H-I-C zone also accommodates some light industrial and logistics uses at interchange locations. Developers pursuing agricultural processing facilities should also review the county's specific plan areas near Castle Airport for campus-style industrial sites with infrastructure already in place.
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Zoning data is pre-development intelligence, not legal advice. Verify with the Merced County Unincorporated planning department before acquisition or design.