Looking for a SWPPP consultant in Hillsborough, CA? Describe your project once and up to five stormwater consultants who work in Hillsborough and San Mateo County get back to you with a quote. It's free and there is no obligation.
Hillsborough is home to about 11,171 people (2024 Census Bureau estimate), a shrinking community (−1.8% since 2020). With 1,812 people per sq mi, it is a suburban area. Subdivisions and commercial sites here need stormwater permit coverage before grading.
Hillsborough at a glance
- Population (Census Bureau estimate, 2024)
- 11,171 (−1.8% since 2020)
- Rank in California
- 360th of 482 cities and towns
- Land area
- 6.2 sq mi
- Population density
- 1,812 people per sq mi (suburban)
- Type
- Town (Hillsborough town)
- Main county
- San Mateo County
What to check before hiring in Hillsborough
- Permit: in California, check the state construction general permit.
- Local rules: Hillsborough may add its own erosion control permit.
- Records: keep inspection reports on site.
- Price drivers: site size, phases, inspection frequency and duration.
Useful official resources
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EPA: construction stormwater
Official information and guidance.
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EnviroCert: CPESC
Official information and guidance.
Services available in Hillsborough
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SWPPP and permit coverage
Preparation of the SWPPP and notice of intent under the construction general permit.
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Stormwater inspections
Routine and post-storm inspections with reports for the permit.
Frequently asked questions in Hillsborough
How much does a SWPPP cost in Hillsborough, CA?
It depends on site size, phases and inspections. Describe your project: consultants who serve Hillsborough reply with a quote.
How long does it take?
Plans often take days to a couple of weeks, plus the permit review.
What happens at the end?
A notice of termination is filed once the site is stabilized.
Which stormwater consultants will contact me?
Up to five independent stormwater consultants who serve Hillsborough and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.