1. Start with Property Records
If you have a last-known street address, the fastest first step is the county assessor or recorder. Most U.S. counties let you search property ownership by name or address, often free. Owner history lets you see when someone moved or sold.
Open the SearchSystems county directory and click your state, then your county: see Guide to Finding People with Public Records or Harris County, Texas for examples. Property data also exists in many city / town offices in Virginia, New England, and other compact-government states.
One habit separates people who find someone from people who give up: work the county, not the search engine. Assessor sites answer "does this person own property here now," while the recorder's deed index answers "when did they buy, sell, refinance, or move." A sale recorded eight months ago with no new purchase in the same county is the classic signature of someone who left the area — and the deed itself often lists the forwarding arrangement or the name of a spouse you didn't know to search.
2. Recorded Documents (Deeds, Liens, UCCs)
The county recorder / register of deeds holds far more than just deeds. Expect mortgages, liens, satisfactions, military discharges (DD-214), bonds, marriage licenses, divorce decrees, child-support records, DBAs, financing statements (UCCs), trusts, leases, and wills.
Try Maricopa County, AZ (recorder.maricopa.gov) or Cuyahoga County, OH (cuyahogacounty.us). Each county exposes different document classes — compare two and you’ll see how rich a recorder index can be.
Browse the SearchSystems recorded documents directory by state for direct links.
Recorded documents reward patience because they capture co-signers. A mortgage lists every borrower; a quitclaim deed after a divorce shows who kept the house and, often, the attorney who handled it. When a common name drowns you in false matches, the recorded-document trail is how you separate your John Miller from the other forty — the addresses, spouses, and notary counties stack into a fingerprint no name-search can give you.
3. Voter Registration
Many counties — and some entire states — publish a free voter-lookup tool. You confirm a registered name, date of birth on file, and an address. It will not return phone numbers, but it strongly verifies that a person lives where you think they do.
Find your state’s tool in our voter records directory.
Voter data is the most current address source most researchers never use — people update registration when they move because elections force the issue. Rules differ sharply by state: some sell the full file cheaply, some restrict it to campaigns, and every state runs confidentiality programs that shield survivors of abuse. If the county election office can't release the record, ask what the state's public-access version of the file includes; there's usually one.
4. Professional License Lookups
Doctors, nurses, contractors, real-estate agents, attorneys, accountants, security guards, cosmetologists, even auctioneers — all licensed at the state level. State portals let you verify the active address on file, license status, and any disciplinary action.
Browse California licenses, Florida licenses, or any other state from the SearchSystems directory.
Licenses travel with careers, which makes boards a tracking tool: a nurse who moves from Ohio to Arizona surrenders nothing — the new state's board simply shows a fresh license with the same name and credential history. Compact licenses (nursing, medicine, EMS) make this even better, since one lookup can reveal multi-state practice privileges. Board records are free, primary-source, and updated on a schedule commercial resellers can't match.
5. Court & Criminal Records
Civil and criminal cases include names, addresses, and sometimes dates of birth. Even if you can’t see full documents, the case index alone may confirm a person’s current city. PACER covers federal courts (per-page fee); each state has its own portal — check the SearchSystems court records page for your state.
Court records find people that nothing else finds, because lawsuits force addresses into the open: every filing lists the parties, and service of process requires a real location. County civil indexes catch evictions, small claims, and divorces; PACER catches federal cases for ten cents a page with a $3 cap per document — and if you pull less than $30 a quarter, it bills you nothing at all. There is no public FBI lookup on another person; anyone selling one is repackaging exactly these court sources.
6. Vital Records (Birth, Death, Marriage)
Vital records establish the basic facts of a person’s life. Most modern state offices restrict open access for privacy, but historical indexes (typically anything older than ~50 years for births, 25 years for deaths) are often public and free. See your state on the vital records directory.
For research older than 1940, also check the FamilySearch wiki for your state — it’s free.
You can't order a stranger's birth certificate anywhere in America — but vital records still help you find people through the index side: marriage indexes tie maiden names to married names, and death indexes end a search definitively. Many states publish these indexes free once records age past their privacy window, and genealogy sites mirror them. When a trail dies at a name change, the marriage index is usually the splice.
7. Free Phone & Address Lookups
Free directory assistance is gone, but several legitimate free indexes still work. The Federal Communications Commission (FCC) publishes its licensee database (call signs and addresses of radio operators and broadcasters): see FCC databases. State and federal employees often appear in public directories at USA.gov.
Free phone lookups are honest about landlines and increasingly blind to cell numbers, which churn through carriers and resellers. Treat any free "owner of this number" result as a lead to confirm, not an answer — and remember the county trick works in reverse: if a reverse lookup gives you a street address, the assessor tells you in seconds whether your person actually owns it or left years ago.
9. Reverse Lookups
If you have a phone number or address but no name, start with the FCC (for landlines) and county recorder (for addresses). Local newspaper obituaries on Legacy.com and free public-library databases at FamilySearch can fill gaps.
Reverse searching an address through the recorder pulls the ownership chain; reverse-searching it through voter data pulls the current registered adults; court indexes pull anyone who was ever sued at that address. Those three views of one address — owner, resident, litigant — are the complete free stack, and they're each other's error-check when a result looks wrong.
Legal & Ethical Limits
The federal Fair Credit Reporting Act (FCRA) bars using public records to make employment, credit, insurance, or housing decisions unless you go through a regulated Consumer Reporting Agency. State stalking, harassment, and identity-theft laws apply too. Use public records to verify identity and find lost relatives — not to harass.
The line to respect is purpose, not access. The FCRA doesn't care where data came from — it cares what you use it for: employment, housing, and credit decisions require a permissible purpose and, for employment, the candidate's consent. Stalking and harassment statutes apply no matter how public the source was. Public records make you findable; the law decides what finders may do.
8. Social Media & Open Web
Public posts on LinkedIn, Facebook, X, and Instagram are still the fastest way to locate someone today. Combine the person’s name with a city, employer, or alma mater in Google. Reverse-image search of a profile photo on Google Images can also surface other handles.
The open web works best as a verifier, not a starting point. Once county records give you a middle initial, a spouse's name, or an employer, a search engine can confirm the living, current version of that person — a workplace bio, a race result, a church newsletter. Work in that order and the common-name problem largely disappears; work in the reverse order and you'll chase strangers for hours.