Crystal City is a city in eastern Jefferson County, Missouri, United States and is a suburb of St. Louis. The population was 4,855 at the 2010 census. It was 4,740 at the 2020 census. Crystal City and its neighbor Festus are often collectively known as the "Twin Cities".

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How Crystal ranks

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#88Highest income in MO #104Lowest property tax in MO #110Best schools in MO All MO rankings →

Town numbers

ZIP code63019

Area code636

Living in Crystal

Housing in Crystal

$231K▲ 4.1% in a year Typical home value · Zillow

The typical Crystal home is worth about $231,000, up 4.1% in a year, 14% below the Missouri typical home.

A strong seller's market

Buyer’sBalancedSeller’s

Days on market16

Sale-to-list99.7%

Sold in May9

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Crystal

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Not graded

A grade needs all of the FBI's latest years (2023–2025). Crystal's police department reported only 2023 and 2025, so we don't grade it yet. The figures below are still real.

Violent crime per 1,000

Crystal 1.3

Missouri 4.3

U.S. 3.3

Property crime per 1,000

Crystal 4.5

Missouri 16.9

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Schools in Crystal

All Crystal schools →

B⁺

School Grade B+

The public schools Crystal’s kids attend outperform 66% of Missouri’s districts on state tests. Among towns with similar incomes, they sit near the middle.

#110Best public schoolsof 226 in MO

DistrictCRYSTAL CITY 47Schools3

Crystal City Elem. BElementary · Grades PK–6 · 324 students St. Pius X Catholic High SchoolElementary · Grades 6–8 · 154 students Crystal City High BHigh · Grades 7–12 · 238 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results, graded within MO. Ratings are from neighbors.

Famous people from CrystalWriters, athletes, leaders and more who were born in Crystal.Meet them →