States · Missouri · Jefferson County

Murphy, Missouri.

A community in Jefferson County, with no city government of its own. Zillow publishes no home prices for it: see Jefferson County’s.

Living in Murphy, Jefferson County, Missouri

Murphy, in Jefferson County, had 8,425 people in the 2020 census. Half its households earn more than $72,233 a year and half less, against $82,851 across Jefferson County; 10% of its people live below the poverty line. 80% of its homes are lived in by their owners and 20% are rented. Unemployment in Jefferson County was 3.6% in August 2026, and the county had 0.3% more jobs in 2025 than the year before. The most residents work in schools and health care, then shops.

People 8,425 in the 2020 census; median age 39.2
Household income $72,233 the median, give or take $10,680 · Jefferson County: $82,851
Unemployment 3.6% Jefferson County, August 2026; 3.8% a year before
Homes 80% lived in by their owners; 20% rented
  • 3,481households
  • 22%of adults have a degree
  • 10%below the poverty line
  • 25 mintypical commute
  • 13%work from home

What residents work in

  • Schools, hospitals and social care21%
  • Shops (retail)21%
  • Professional and business services11%
  • Building trades9%
  • Restaurants, hotels and entertainment8%
  • Manufacturing8%

Employed residents by industry, from the Census survey. Jefferson County had 49,584 jobs in 2025, 0.3% more than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 40° and 22°; warmest in July, 89° and 69° 20° 40° 60° 80° J 40° 22° F M A M J J 89° 69° A S O N D
Average daily high and low for each month: coldest in January, 40° and 22°; warmest in July, 89° and 69° 20° 40° 60° 80° J 40° 22° F M A M J J 89° 69° A S O N D

Coldest in January, with highs near 40° and lows near 22°; warmest in July, with highs near 89° and lows near 69°. About 8 inches of snow and 42 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the St. Charles Ssw weather station, 14 miles away (NOAA).

Largest workplaces in Murphy

  1. Production CastingsAluminum die-casting foundries193
  2. Acme ErectorsErecting structural steel60
  3. MW ComponentsSpring manufacturer56
  4. Underdown TrenchingTelecommunications equipment and wiring installation contractors42
  5. Tops UnlimitedMillwork, custom architectural, manufacturing39
  6. Comarco Complete Door SystemsDoor and window, prefabricated, installation37
  7. Loomis Bros. Equipment CompanyLaundry machinery, equipment, and supplies, commercial, merchant wholesalers30
  8. Automotive TechnologyTools and equipment, motor vehicle, merchant wholesalers28

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 9 workplaces with 20 or more staff, 509 people in all. 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. Strong windRelatively high
  2. TornadoesRelatively high
  3. HailRelatively moderate
  4. EarthquakesRelatively moderate
  5. LightningRelatively moderate
  6. Cold wavesRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Murphy’s census tracts, against the rest of the country; all of them together, relatively moderate. 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 Jefferson County.