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58 US registries · continuously updated

Sex Offenders in Diamond Bar, CA

We index about 23 registered sex offenders with a Diamond Bar address.

Free countNo cardNo one is told you looked

Checking one person instead? 25 name look-ups are free.Look someone up by name

Public registry information. It may not be used for employment, tenant, credit or insurance decisions, or to harass or threaten anyone.

SCHOOLPARKMaple StOak StreetElm StPine St1st Ave2nd AveMain Street4th Ave1 mile

Trick-or-treating in Diamond Bar this Halloween? Check sex offenders on your route.

Check the streets on your route for registered sex offenders before you go. Search any address and see who is registered nearby, with photos and official record links.

Registered sex offenders in Diamond Bar by the numbers. About 1 in 2,394 residents is on the registry.

23
registrants we index with a Diamond Bar address
4.2
per 10,000 residents · California 15.9
under 1%
of the registrants we index in California
166th of 169
California cities by number · 157th by rate
  • About 23 registrants we index list a Diamond Bar address — about 1 in 2,394 residents.
  • That is 4.2 per 10,000 residents, about 74% below the California average of 15.9.
  • Diamond Bar accounts for under 1% of the registrants we index in California.
  • It ranks 166th of the 169 California cities we publish pages for by number of registrants we index, and 157th of 169 by rate per resident.
  • Diamond Bar is in Los Angeles County, where we index about 14,064 registrants — Diamond Bar is under 1% of that.
  • The closest cities we publish pages for are West Covina (about 5 miles away), Pomona (about 6 miles), Chino Hills (about 7 miles), Chino (about 8 miles) and Yorba Linda (about 8 miles).

Counts are registrants we index with a Diamond Bar address as of October 2026, rounded and approximate — not an official figure. The figure moves continuously — search for the current picture on any specific person. Rates use 2020 Census population. California sex offender statistics.

Diamond Bar sex offender rate: how Diamond Bar compares. Diamond Bar against California and the US.

Registrants we index per 10,000 residents as of October 2026, against the California and national averages. All three rows come from the same continuously updated dataset, so the comparison divides like by like.

AreaRegistrants we indexPer 10,000 residents
Diamond Bar, CA234.2
California average62,89515.9
United States average1,563,01047.2

Sex offenders near your Diamond Bar address: a city-wide figure is not your street. How many live near your Diamond Bar address?

Enter your address and you will see how many live near it.

Free. Next: a free account, then your count. No card.We don’t share your address or tell anyone you looked.

Checking one person instead? 25 name look-ups are free.Look someone up by name

Free: the count near your address and 25 name look-ups. Optional: see everyone near it — $9.99 once, or Family Watch, $34.99 a year for 3 addresses with email alerts.

Public registry information. It may not be used for employment, tenant, credit or insurance decisions, or to harass or threaten anyone.

Sex offenders near me in Diamond Bar — and everywhere else at once. Checking a date, a neighbor or a new sitter? Type their name.

People move. A check limited to Diamond Bar misses a registration anywhere else, so a search here covers every US registry — the 50 states, DC and the territories — and lets you narrow to Diamond Bar by city or ZIP when that is the question. Every result is scored, carries its photographs, and links to the official registry record.

Checking around a specific address? Search sex offenders near me by address or ZIP. Looking wider than Diamond Bar? See the Los Angeles County sex offender registry. Searching the whole state? See the California sex offender registry.

25 free searches, no card. Every US registry at once.

What a match looks like · illustrative data58 of 58 answered
CA · SAMPLE
Jordan A. SampleMatch · full birth date
Born1980-04-12 · age 46Addressresidence · 1200 block Main St, Diamond Bar, CAOffenseSexual offense against a childTierModerate risk · compliantRegistryCalifornia Megan's Law (DOJ)
Official record ›fictional sample record

Sex offenders in other cities in Los Angeles County. Other cities in Los Angeles County, side by side with Diamond Bar.

Registrants we index in the other Los Angeles County cities we publish pages for — useful when you live near a city line, or are checking a commute, a school or a relative’s neighborhood.

CityRegistrants we indexPer 10,000 residents
Diamond Bar234.2
Los Angeles4,68412
Long Beach85518.3
Lancaster46126.6
Palmdale23513.9
Compton22523.5
El Monte22220.3
Pomona22114.6
Inglewood21820.2
Los Angeles County (all)14,06414

Sex offenders by ZIP code in Diamond Bar. Each Diamond Bar ZIP code with its own count.

Registrants we index with each Diamond Bar ZIP code, for the ZIP codes we publish a page for. A ZIP code is a mail-delivery area, so one can cross the city line; the city figure above follows the city boundary.

ZIP codeRegistrants we indexPer 10,000 residents
91768 · Pomona3610.3
91765194.2
91789 · Walnut9—

California sex offender registry: how California’s registry works for a Diamond Bar search. Three things that make a Diamond Bar search accurate.

01California's registry publishes a full date of birth, so if you know the person's birthday a match can be confirmed precisely. With a common name, a matching date of birth is the fastest way to tell two people apart.
02California’s own public search is California Megan's Law (DOJ). California’s own search is organised county by county, so checking one name statewide means repeating the search one county at a time. It answers for California only. People move across state lines, and a check limited to California misses a registration made anywhere else. A Diamond Bar search here reaches California, its neighbors (Arizona, Nevada, Oregon) and every other US registry in the same pass — so a registration from a prior state still surfaces on someone who now lives in Diamond Bar.
03Read the record, not just the name. Names repeat, so confirm the photograph, the date of birth or age, and the offense detail, then follow the official record link to verify at the source.

Diamond Bar sex offender search by address: search near an address in Diamond Bar. Start from the street you care about.

The question most people bring to a Diamond Bar page is about one street — a home you are renting, a school, a park, a babysitter’s house. Enter that address or its ZIP code and pick a radius: a few blocks for a single home, a mile or more for a neighborhood. Results are the full registry records nearest that point, with photographs, offenses and the link to the official record.

Radius search sees registrants whose published address we have placed on a map coordinate, so when you are checking a particular person, search their name as well. To keep watching an area rather than checking once, set up a location alert and you will be emailed when someone registered nearby is added or moves in.

Search by address or ZIP · Get a list for your area · Family Watch: an email when someone moves in

Diamond Bar sex offender map. Each dot is a registered address; the rings are drawn around yours.

count · 123 Main St, Diamond Bar, CAillustrative map · counts not real
MAIN STOAK AVECENTRAL BLVDPARKRIVER1 MIYOUR COUNT · ILLUSTRATIVE123 Main St, Diamond Bar, CA31registered sex offenderslive near this addressSee who they areIllustrative · positions and counts not real

California sex offender record: what a California registry record shows — and what it doesn’t. Read the record, not just the name.

A registry record typically carries the registrant’s name and any aliases, a photograph, the address they last reported, the offense or offenses that required registration, and their registration status. Most also give a physical description, and many give a risk level or tier.

What it is not: a full criminal history. A registry lists the offenses that carry a registration duty, not every arrest or conviction, and an address is where someone last reported living, not proof of where they are today. Offenses that never required registration will not appear here at all — that is what a criminal records search is for.

How to read a record · Criminal record search

Search sex offenders in Diamond Bar two ways. Two ways to use it: look up a person, or check around an address.

01

Look someone up by name

Type a name and get the people who match — photographs, addresses, offenses, and the official record behind each one. Upload a CSV to check a whole list. Your searches are stored with the results you saw, so you keep an audit trail.

Look someone up by name · Search the registry →

02

Check around your Diamond Bar address

See how many registered sex offenders live near your address, free. Then see everyone near it on a map for $9.99 once, or add Family Watch for an email whenever someone moves in or out.

Check my address — free · How Family Watch works →

Is it free to check sex offenders in Diamond Bar, CA? The count near your address is free, and so are 25 name look-ups.

Free

Your count, and 25 names

How many registered sex offenders live near your address, plus 25 name look-ups. No card.

$9.99 once

See everyone near you

Names, photographs, offenses and distance for everyone within 30 miles of one address, on a map and as a PDF. Pay once, open for 30 days.

$34.99 a year

Family Watch

Up to 3 addresses — home, school, grandparents — each unlocked, plus an email when someone registers, moves in or moves out nearby. Or $6.99 a month. Cancel any time.

Diamond Bar offender search FAQ. Quick answers before you search.

Are there sex offenders near me in Diamond Bar?

Yes — we index about 23 registrants with a Diamond Bar address, about 4.2 per 10,000 residents. Whether any live near you depends on the street, not the city average, so search from your own address or ZIP and widen the radius until it covers the area you care about.

How many sex offenders are in Diamond Bar, CA?

We index approximately 23 registrants with a Diamond Bar address — about 1 in 2,394 residents. Treat the figure as scale rather than a fixed number: the registered population moves continuously as people are added, move, or are released from the requirement. When you need an answer about a specific person, run a search.

How do I find sex offenders in Diamond Bar by address?

Enter a Diamond Bar street address or ZIP code and create a free account to see how many registered sex offenders live near it. To see everyone near it — names, photographs, offenses and exact addresses — it is $9.99 once, or Family Watch, $34.99 a year for 3 addresses with an email when someone moves in or out. Checking one person? A Background Check is $9.99; your first 25 name searches are free.

Is there a Los Angeles County sex offender list?

Registries are kept by the state, not the county, so there is no separate official county list. The Los Angeles County page lists the registrants we index across the county (about 14,064), with a per-city breakdown, and a search can be narrowed to any Los Angeles County city or ZIP.

How do I check a specific person in Diamond Bar?

Type their last name and add whatever else you hold — first name, date of birth, or narrow to Diamond Bar by city or ZIP. You get scored matches with photographs and official record links. Your first 25 searches are free, no card required.

Does a Diamond Bar search include people registered in other states?

Yes — that is the point of searching here rather than one state's site. A search runs across every US registry at once, so someone now in Diamond Bar who was registered elsewhere still surfaces. Narrowing to Diamond Bar filters where people live; it never shrinks where we look.

Which cities near Diamond Bar have their own sex offender page?

Nearby, we publish pages for West Covina (about 5 miles away), Pomona (about 6 miles), Chino Hills (about 7 miles), Chino (about 8 miles) and Yorba Linda (about 8 miles), each with its own count. Distances are straight lines between the cities. To cover the area around one address instead, search outward from it and widen the radius past the city line.

Can I get an alert when a registered sex offender moves to Diamond Bar?

Yes. Family Watch watches up to 3 addresses in Diamond Bar or anywhere else — home, school, a grandparent's — and emails you when someone registered nearby is added, moves in or moves out, so you are not re-running the same search every few weeks. $34.99 a year, or $6.99 a month; cancel any time.

Is this the official registry list?

No single official "list of sex offenders in Diamond Bar" exists — registries are maintained per jurisdiction, not per city. What you search here is our continuously updated national dataset, each record carrying a link to its official registry entry so you can verify any result at the source that published it.

Standard results are not a consumer report; FCRA-covered decisions run through FCRA Partner Access, our separately enabled regulated service.

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Diamond Bar, CA registered sex offenders — OffenderSearch
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Check your own Diamond Bar address for registered sex offenders

The count of registered sex offenders near your address is free.

Free. Next: a free account, then your count. No card.We don’t share your address or tell anyone you looked.

Checking one person instead? 25 name look-ups are free.Look someone up by name

Free: the count near your address and 25 name look-ups. Optional: see everyone near it — $9.99 once, or Family Watch, $34.99 a year for 3 addresses with email alerts.

Public registry information. It may not be used for employment, tenant, credit or insurance decisions, or to harass or threaten anyone.

Monitoring & alerts

Diamond Bar, CA sex offender alerts. Get alerts for Diamond Bar, CA.

We'll email you when a registered offender is added or moves near your Diamond Bar, CA address — a recurring watch on our continuously updated data.

The count near your address is free. Family Watch — up to 3 addresses with email alerts — is $34.99 a year, or $6.99 a month, optional, and you can cancel any time.

This is not a consumer report and must not be used for FCRA-governed hiring, tenancy, or credit decisions — those run through FCRA Partner Access.

For developers: build monitoring into your own product with the API ›

alert · your address · 1 mi$34.99 a year · email

Diamond Bar sex offender data for developers. Put Diamond Bar screening in your own system: one API call searches every US registry.

Search sex offenders in Diamond Bar — and everywhere else — right now

See how many registered sex offenders live near your address — free, no card. 25 name look-ups are free too.