San Luis Obispo Population

1880–2026

51,298

2026 projection

8.7% since 2020 (increase)

010K20K30K40K50K60K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for San Luis Obispo. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202651,298+6621.31%
202550,636+8011.61%
202449,835+7451.52%
202349,090+6161.27%
202248,474+5881.23%
202147,886+7021.49%
202047,184-2240.47%
201947,408-130.03%
201847,421-210.04%
201747,442+2200.47%

Showing 10 of 30 years.

San Luis Obispo Demographics

26.3median age

Median age

Female27.1 yrs
Male25.8 yrs

Adults

43,500
7,210 seniors · 17%36,290 other adults

Sex

Female 51.3% · 24,889Male 48.7% · 23,602

Population by age

MaleFemale85+ years, male: 49385+ years, female: 59280–84 years, male: 33980–84 years, female: 53475–79 years, male: 48675–79 years, female: 84270–74 years, male: 83170–74 years, female: 91365–69 years, male: 1,01465–69 years, female: 1,16660–64 years, male: 99660–64 years, female: 1,13655–59 years, male: 92055–59 years, female: 87450–54 years, male: 1,03750–54 years, female: 89445–49 years, male: 85645–49 years, female: 77840–44 years, male: 92840–44 years, female: 1,14935–39 years, male: 1,16935–39 years, female: 1,13930–34 years, male: 1,32230–34 years, female: 1,40525–29 years, male: 1,70425–29 years, female: 1,86420–24 years, male: 7,61220–24 years, female: 7,77315–19 years, male: 1,78515–19 years, female: 1,81210–14 years, male: 63010–14 years, female: 6745–9 years, male: 7065–9 years, female: 7130–4 years, male: 7740–4 years, female: 63185+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K6K6K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 485 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

San Luis Obispo Income

$73,685median household income

Median household income

$73,685

Half of households earn more, half earn less

Median earnings

$62,461

Typical yearly pay for a worker 25 or older.

Poverty rate

30.4%

About 1 in 3 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

San Luis Obispo Marital Status

30% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married30%31%28%
Never married59%61%56%
Divorced7%5%9%
Widowed4%2%5%
Separated<1%<1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year