States · California · Sonoma County

Monte Rio, California.

Typical home $520,717 (+0.8% in a year). Santa Rosa-Petaluma, CA metro.

What it costs per month · Monte Rio $2,733/mo

to buy the typical home at today's mortgage rate — +$856 (+46%) since Jan 2020.

What the home itself did
1 year
Up $4,299 +1%
$516,418$520,717 since Sep 2025
5 years
Down $96,607 -16%
$617,324$520,717 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$1,000 $2,000 $3,000 $4,000 2002 2006 2010 2014 2018 2022 2026 Monte Rio $2,733 California $3,997 United States $1,922
$1,000 $2,000 $3,000 $4,000 2002 2010 2018 2026
  • Monte Rio$2,733
  • California$3,997
  • United States$1,922

At the last five years' pace, prices here aren't rising.

Typical home values in Monte Rio, CA rose 0.8% over the past year — slower than the nation's +1.2%.

Living in Monte Rio, Sonoma County, California

Monte Rio, in Sonoma County, had 1,080 people in the 2020 census. 83% of its homes are lived in by their owners and 17% are rented. Unemployment in Sonoma County was 4.5% in August 2026, and the county had 0.2% fewer jobs in 2025 than the year before. The most people in Sonoma County work in schools and health care, then professional services.

People 1,080 in the 2020 census
Household income Too few homes in Monte Rio for the Census survey to measure.
Unemployment 4.5% Sonoma County, August 2026; 4.8% a year before
Homes 83% lived in by their owners; 17% rented

Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.

What it’s like

The place. Monte Rio is a small community on the Russian River, and most homes here are lived in by their owners. Winters are cool and wet, with the coldest weather in December, while summers are mild, with August the warmest month. Rain is plentiful across the year, and a good share of adults hold a four-year degree.

Work. Residents work mostly in schools, hospitals and social care, with many others in professional and business services, shops and manufacturing. Across Sonoma County, some of the largest workplaces are Kaiser Permanente, Santa Rosa Junior College and Santa Rosa Memorial Hospital. Unemployment in the county is a little lower than a year ago, though the county has slightly fewer jobs than it did the year before.

Things to do. The Russian River is a short drive away, as are Armstrong Redwoods State Natural Reserve, a protected area of old redwood forest, and Goat Rock Beach on the coast. Farther afield, a longer drive leads to Fort Ross, a historic fort on the Sonoma coast.

Report a mistake
  • 45%of adults have a degree
  • 12%below the poverty line

What people in Sonoma County work in

  • Schools, hospitals and social care23%
  • Professional and business services13%
  • Shops (retail)11%
  • Manufacturing10%
  • Restaurants, hotels and entertainment10%
  • Building trades9%

Employed residents by industry, from the Census survey. Sonoma County had 206,393 jobs in 2025, 0.2% fewer than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in December, 55° and 41°; warmest in August, 78° and 53° 40° 50° 60° 70° 80° J F M A M J J A 78° 53° S O N D 55° 41°
Average daily high and low for each month: coldest in December, 55° and 41°; warmest in August, 78° and 53° 40° 50° 60° 70° 80° J F M A M J J A 78° 53° S O N D 55° 41°

Coldest in December, with highs near 55° and lows near 41°; warmest in August, with highs near 78° and lows near 53°. About 54 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Occidental weather station, 7 miles away (NOAA).

Largest workplaces in Sonoma County

  1. Solairus AviationPassenger air transportation, nonscheduled1,800
  2. Kaiser PermanenteGeneral medical and surgical hospitals1,755
  3. Keysight TechnologiesDigital test equipment manufacturing1,517
  4. Santa Rosa Junior CollegeTwo-year college1,491
  5. Santa Rosa Memorial HospitalGeneral hospital1,444FTE
  6. Santa Rosa High SchoolsSchool district1,119FTE
  7. Sonoma State UniversityUniversity or college1,058
  8. KFH - Santa RosaGeneral hospital884FTE

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 414 workplaces with 20 or more staff, 48,136 people in all across the county; Monte Rio has none of its own. Colleges come from IPEDS (NCES, 2023–24), hospitals from their Medicare cost reports (CMS, 2023) and school districts from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. Inland floodingVery high
  2. LandslidesRelatively high
  3. Wildfirerelatively high in parts of Monte RioRelatively moderate
  4. Earthquakesrelatively high in parts of Monte RioRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Monte Rio’s census tracts, against the rest of the country; all of them together, relatively high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Sonoma County and the Santa Rosa-Petaluma, CA metro.

Monte Rio home values

Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.

$200,000 $400,000 $600,000 $800,000 2018 2020 2022 2024 2026 Monte Rio $520,717 California $761,538 United States $366,157
$200,000 $400,000 $600,000 $800,000 2018 2022 2026
  • Monte Rio$520,717
  • California$761,538
  • United States$366,157

When this market ran hot

Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.

JFMAMJJASOND
2026
2025
2024
2023
2022
2021
2020
2019
2018
falling flat warming hot overheating runaway

Market heat, inside the city limits

Homes for sale

Active for-sale inventory. More supply hands power to buyers.

5 8 10 12 2026 Monte Rio 13
5 8 10 12 2026
  • Monte Rio13

New listings per month

Sellers arriving at the market.

4 4 4 2026 Monte Rio 4
4 4 4 2026
  • Monte Rio4

Zip codes with a Monte Rio address

A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Monte Rio — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.

Zip codes in Monte Rio