There is no federal staff-to-resident ratio for assisted living. States set staffing rules, and many require only "sufficient" staff. California and Arizona set no fixed ratio. Georgia sets minimums, such as one staff person per 15 residents during waking hours. So ask each community for actual numbers of direct care aides on your parent's floor. Get them for the day, evening and night shifts.
Key facts
- There is no federal staff-to-resident ratio for assisted living, so each state sets its own staffing rules. (NCAL, 2026)
- Georgia calls for at least one on-site staff person per 15 assisted living residents during waking hours and one per 20 during non-waking hours. (NCAL, 2026)
- Georgia memory care centers need one dementia-trained direct care staff person per 12 residents while awake and per 15 at night. (NCAL, 2026)
- California and Arizona set no staffing ratios for assisted living and require sufficient staff to be present at all times. (NCAL, 2026)
"We're very well staffed" is an easy answer to give on a tour. It sounds reassuring and tells you nothing. Staffing decides how long your dad waits for help to the bathroom at 3 a.m. It also decides whether the aide who helps him knows he likes his coffee before his shower.
This post explains what state rules do and don't require, and why a single ratio can mislead. Then it gives the exact questions that get useful numbers.
Is there a required staff-to-resident ratio in assisted living?
No. There is no federal staff-to-resident ratio for assisted living, so each state sets its own staffing rules. Most states require "sufficient" staff to meet residents' needs instead of a set number. Some states do set numbers, and several have separate ones for memory care.
This summary comes from a 2015 federal review of state rules by ASPE, a policy office of the U.S. Department of Health and Human Services. It found that assisted living is governed almost entirely by state laws and rules. It counted 32 states with flexible, as-needed staffing and 19 states with required staffing ratios. The count is from 2015, so check your state's current rules.
The National Center for Assisted Living (NCAL) sums up each state's rules in its yearly regulatory review. Three examples show the range:
| State | What the rules say about staffing |
|---|---|
| California | No specified staffing ratios; staff must be sufficient at all times to meet residents' needs. Night rules depend on size: in a community with 16 to 100 residents, at least one employee on duty and awake, plus another on call who can respond within ten minutes, with more required as the number of residents grows. |
| Georgia | Assisted living communities should have at least one on-site staff person per 15 residents during waking hours and one per 20 during non-waking hours, plus two direct care staff on site at all times with one on each floor. Memory care centers: one dementia-trained direct care staff person per 12 residents while awake and per 15 at night. |
| Arizona | No staffing ratios; sufficient staff must be present at all times to provide the services the community is licensed for. |
These are summaries from NCAL's regulatory review (2026 editions) and California's night supervision rule. Rules change, so check your state licensing agency for the current version.
Memory care, the separate units or programs for people with dementia, often has its own numbers. These examples come from the state rules we checked for our state pages:
- Maine. Memory care units need at least one direct care staff person for every 12 residents from 7 a.m. to 3 p.m. The minimum is one for every 18 from 3 p.m. to 11 p.m., and one for every 30 from 11 p.m. to 7 a.m. Units must add staff when residents' care and safety needs call for more.
- Georgia. A memory care center needs one dementia-trained direct care staff person for every 12 residents during waking hours. During non-waking hours it needs one for every 15, based on a monthly average.
- Illinois. A community with a special Alzheimer's or dementia program must provide at least 1.4 hours of services per resident per day. At least one staff member must be awake and on duty at all times.
Nurse rules vary in the same way, and no federal rule sets a nurse-to-resident ratio. In the 2015 federal review, 38 states required a licensed nurse or other licensed health professional. In 24 of them, that person only had to be available, for example as a consultant. In the other 14, they had to be on staff at least some hours each week.
To look up the staffing rules in your state, start with our state-by-state guide. Each state page names the licensing agency and links to the rules it quotes. The memory care numbers above are on our pages for assisted living rules in Maine, Georgia and Illinois.
Two things follow. First, "we meet all state requirements" may mean very little in a state without a ratio. Second, a state minimum is only a floor. Meeting it doesn't mean your parent's needs will be met at every hour.
Why can one ratio number mislead you?
The same "1 to 8" can describe very different situations. Before you write any ratio down, ask four follow-up questions:
- Who is counted? Direct care aides only, or also the cook, the receptionist and the activities director?
- Which shift? Staffing often differs between day, evening and night. Your parent needs help at all three.
- Which floor or wing? A building-wide average can hide one floor with heavier needs.
- How much help do residents need? Eight residents who need reminders are a different workload from eight who each need hands-on help to stand.
KFF Health News gave families a tip in a 2023 guide. Ask for resident-to-aide numbers for nights, weekends and weekdays separately. A request like that is much harder to answer with a general reassurance.
Which staffing questions reveal the most?
Ask these of the sales team, and also of the executive director or the head of nursing. Afterward, ask for the numbers in writing.
- "How many direct care aides are scheduled on this floor for the day shift, the evening shift and the night shift, and how many residents live on this floor?"
- "How many residents here need two people to help them move or transfer? How many need help at night?"
- "Will my mother have the same aides most days?" Consumer Voice says it's ideal when the same staff person is assigned to help a resident with personal care.
- "How often do you use agency or temporary staff, and how are they introduced to residents?"
- "What is your staff turnover, and how long have the executive director and the head nurse been here?" NCAL's consumer checklist includes the turnover question.
- "What training do aides get before they work alone with residents, and each year after? What dementia training?" NCAL and Consumer Voice both suggest asking about training and qualifications.
- "Do you run background checks on all employees?" Consumer Voice lists this question.
- "If my father's needs increase, does his floor's staffing change, or does he move?"
If the answer stays vague, try this: "I understand staffing varies. Could you tell me how many aides were on this floor last Tuesday night, and how many residents? A recent real night is more useful to us than an average."
What should you ask about nurses, medications and nights?
Ask who is in the building at night and who handles medications. These answers matter most for a parent with several prescriptions or a condition that can change quickly.
- Nurse hours. Consumer Voice suggests asking how many hours a day a registered nurse or licensed practical nurse is on site. It notes that many communities don't have a nurse around the clock. Ask who is on call at night and how quickly they can come in.
- Medications. NCAL suggests asking whether staff help with medications, what kind of staff, and what training they received. Who can pass medications depends on state rules.
- Nights. "Who comes when my mother presses her call button at 2 a.m., and how many residents is that person covering?"
- Emergencies. "How are emergencies handled at night, and when do you call 911 versus the family?"
Staffing answers in one place, weighted properly
Parent Move Plan includes 41 tour questions, with columns for each community. They cover day and night staffing and nurse hours. Staffing is one of the most heavily weighted of its 12 comparison criteria, so a vague answer shows up in the score.
Get your first 3 days freeHow can you check the staffing answers yourself?
Compare what you're told with what you see and what's on file. Three checks cover most of it:
- Count on an evening visit. Go back without an appointment around dinner or after. Count the care staff you see on one floor. Our post on the unannounced second visit explains how to do this politely.
- Read the inspection reports. Look for citations about supervision, staffing, response to residents or medication errors. Repeated items on these topics are a stronger signal than any number you're given.
- Read the agreement. Staffing promises made on the tour are rarely in the residency agreement. Ask where the agreement describes the services and supervision your parent will receive.
If the numbers you counted and the numbers you were told don't match, treat it as one of the assisted living red flags and ask about it in writing.
Staffing also connects to price. When a resident's needs grow, many communities move them to a higher care level at a higher monthly charge. Our post on assisted living levels of care explains how that works. If your parent has dementia, compare these answers with what a memory care unit offers. Our guide to assisted living vs. memory care can help. The rest of the tour questions are in our assisted living tour questions guide.
What staffing details should you get in writing before move-in?
Get the few answers that matter most in an email or in the agreement. Tour promises are hard to hold anyone to later. NCAL's checklist for the last step before signing covers staffing too. You should understand how many staff are available and what their qualifications are. You should also have the name and phone number of a staff contact person.
Before you sign, ask for:
- The typical number of direct care aides on your parent's floor for each shift, and the number of residents on that floor.
- The hours a nurse is in the building, and how night on-call works.
- The name, role and direct phone number of your family's main contact, and who to call after hours.
- How staffing and care will be reviewed once your parent has settled in.
After move-in, use the first care plan meeting to check whether the staffing you were promised matches what your parent is getting. Our post on the assisted living care plan meeting covers how to prepare for it. Bring your written answers and compare them with what your parent tells you about nights and weekends.
Frequently asked questions
Is there a required staff-to-resident ratio in assisted living?
There is no federal staff-to-resident ratio for assisted living, so each state sets its own staffing rules. A 2015 federal review found that most states require enough staff to meet residents' needs rather than a fixed ratio, while 19 states set ratios. Some states also set numbers for memory care. Maine, for example, requires one direct care staff person per 12 memory care residents from 7 a.m. to 3 p.m., per 18 from 3 p.m. to 11 p.m. and per 30 overnight.
Do assisted living communities have a nurse on site 24 hours a day?
Many do not. Consumer Voice notes that many communities don't offer a nurse around the clock, and state rules on nursing coverage vary. Ask which hours a registered nurse or licensed practical nurse is in the building and who is on call at night.
Are memory care units required to have more staff?
Some states set separate, higher minimums for memory care. Georgia, for example, requires one dementia-trained direct care staff person for every 12 residents during waking hours in a memory care center, compared with one per 15 in its general assisted living rule. Check your own state's rules.
How can I find my state's assisted living staffing rules?
Your state's assisted living licensing agency publishes the regulations. The National Center for Assisted Living also publishes a yearly state-by-state regulatory review with a staffing section for each state, which is a readable starting point.
How many caregivers per resident does assisted living have?
There is no national number, because each state sets its own staffing rules. Georgia, for example, calls for at least one on-site staff person per 15 residents during waking hours and one per 20 during non-waking hours. California and Arizona set no fixed ratio and require only sufficient staff. Ask each community how many direct care aides are on your parent's floor on each shift.
Is there a nurse-to-resident ratio in assisted living?
There is no federal staffing ratio for assisted living, for nurses or anyone else, and state rules on nursing coverage vary. Consumer Voice notes that many communities don't have a nurse on site around the clock. Ask how many hours a day a registered nurse or licensed practical nurse is in the building, who is on call at night, and how quickly they can come in.
Sources
- National Center for Assisted Living: Georgia, Assisted Living State Regulatory Review (2026) (accessed Sept 2026)
- National Center for Assisted Living: California, Assisted Living State Regulatory Review (2026) (accessed Sept 2026)
- National Center for Assisted Living: Arizona, Assisted Living State Regulatory Review (2026) (accessed Sept 2026)
- Legal Information Institute: Cal. Code Regs. tit. 22, section 87415, Night Supervision (accessed Sept 2026)
- National Consumer Voice for Quality Long-Term Care: How to Select an Assisted Living Facility (2013) (accessed Sept 2026)
- National Center for Assisted Living: Choosing an Assisted Living Community, a consumer's guide (2025) (accessed Sept 2026)
- KFF Health News: What to Know About Assisted Living (2023) (accessed Sept 2026)
- U.S. Department of Health and Human Services, ASPE: Compendium of Residential Care and Assisted Living Regulations and Policy, 2015 Edition (2015) (accessed Oct 2026)
- Maine Department of Health and Human Services: 10-144 CMR ch. 113 Part B, Section 17, Specialized Care Unit Standards (effective Sept. 18, 2025) (accessed Oct 2026)
- Legal Information Institute: Ill. Admin. Code tit. 77, section 295.4060, Alzheimer's and Dementia Programs (2004) (accessed Oct 2026)