Which Vector Control District Covers Your Los Angeles Address?

What is a vector control district, and what does it treat?

A vector control district is a public agency that controls insects and animals that carry disease, chiefly mosquitoes. In Los Angeles County the districts treat public mosquito problems, inspect standing water and track West Nile virus. They do not treat household pests such as ants, termites, cockroaches or rats.

The word vector means an animal that carries disease from one host to another. Mosquitoes are the main example in Los Angeles County, and that is where the district programs put most of their effort. Districts inspect standing water, respond to mosquito complaints, and test for viruses such as West Nile. Some also collect dead birds for testing and treat midges and black flies.

What they do not do is service your house. A district technician does not bait ants, treat termites, fumigate a structure or trap a roof rat. Those jobs sit in a different system, the Structural Pest Control Board's licensing for fumigation, general pest and termite work, and they are done by licensed companies that you hire. Confusing the two is the usual reason a caller waits on the wrong phone line.

This guide is a map, in words, of who answers what. It names the districts, says which cities they list, and says where the information stops, because the list for each district has edges that were not confirmed. For those edges, the district's own map is the answer.

Which district serves which part of Los Angeles County?

The Greater Los Angeles County district serves Los Angeles City and 36 other places, the San Gabriel Valley district serves 26 cities to the east, and the West district serves westside cities and westerly parts of Los Angeles City. A small district, Compton Creek, serves Compton and nearby communities.

The table below lists each district with the places it names. It is not a street-level map. City and neighborhood boundaries do not always match district boundaries, and a district can serve only part of a city. Where a row says what was not confirmed, take it seriously.

Notice that Los Angeles City appears in two rows. GLACVCD lists Los Angeles City among its cities, while the West district covers westerly portions of Los Angeles City. So the city name alone does not tell you which district applies. Your address does.

Which district covers a neighborhood such as Watts or Eagle Rock?

That was not confirmed here. Individual Los Angeles neighborhoods such as Watts and Eagle Rock sit inside a city or a county area, but which district serves a particular address could not be confirmed from the sources. Use the district map or the county locator for the final answer.

It is tempting to guess from the city name, and that guess can be wrong. A neighborhood such as Watts, Eagle Rock or Boyle Heights is part of the City of Los Angeles, and Los Angeles City is listed under GLACVCD and, for westerly portions, under the West district. So a statement like "Eagle Rock is covered by district X" is one this guide will not make.

What you can do is use a district's service map. Most districts publish one, and the county has a locator page. Enter your address or find your street. If you are near a district boundary, call the district and ask. A district will tell you at once whether it handles your property, and it is free to ask.

If you have a neighbor with a pool or a pond that is breeding mosquitoes, a district is who to tell. A district can inspect standing water and respond to a mosquito complaint. A technician from a pest company can help with a yard, which is why our mosquito control page is framed as a complement to the district, not a substitute for it.

Who do I call for rats, mice, ants or termites?

Not the vector control district. GLACVCD does not do rodent control, and rodent questions go to the LA County Vector Management Program at (626) 430-5450. The San Gabriel Valley district does not handle rodents or bees. For work inside or around your house, a licensed technician is the call.

This is where most confusion starts. A district sounds like the agency for anything crawling, but its job is public health. A rat in a neighbor's compost may be a question for the county program, while a rat in your attic is a job for rodent work and sealing. Our rat and mouse control and roof rat control pages describe that side, and the guide on roof rats in palms, citrus and attics covers the climbing species.

Ants and termites are household pests and structural pests respectively. Argentine ant control deals with ants, and termites are covered by the termite pages, such as drywood termite control and termite inspection. Neither falls to a district.

Wildlife is another category again. The California Department of Fish and Wildlife governs coyotes, raccoons and skunks, and a district does not remove them either. Our guide on coyotes and raccoons at the canyon edge explains who to call.

How do I find my district in three steps?

Check your city against the district lists, open the district's service map for your address, and call the district if you are near a boundary. If it turns out that no district handles your problem, call a technician. This takes a few minutes and avoids a wrong call.

The three steps below are short because the answer is a lookup, not a judgment. Do them in order and stop when you have a clear answer.

• Match your city or community to the lists above. Los Angeles City appears under more than one district, so do not stop there if you live in the city.
• Open the district's own service map and look up your street. If the map is unclear, call the district office; it is free to ask which district serves your parcel.
• If the problem is rats, mice, ants, termites or wildlife, skip the district and use the table above, or call (855) 974-4733 to reach a technician.

Why do the boundaries keep changing?

District boundaries can change when areas are annexed, so a list that was right last year may shift. Compton Creek is working with GLACVCD on a parcel annexation, which shows that small adjustments happen. When in doubt, ask the district rather than relying on an old map.

A vector control district's boundaries can shift over time. The Compton Creek Mosquito Abatement District's board agendas mention the annexation work with GLACVCD, and a change like that could move a parcel from one district to the other.

That does not mean the system is unreliable. It means the district list is a starting point. If you are on the edge of Compton, North Long Beach or another boundary area, ask. If you live in a city on the list and the answer is clear, you can stop there.

For readers deciding between a district and a technician for mosquitoes, the useful thing to know is that a district treats public mosquito problems and a technician helps with a private yard. For a seasonal view of when mosquitoes and other pests rise, see the Los Angeles pest calendar.