---
{
  "adminArea": "United States · Missouri · St. Louis County",
  "aliases": [
    "圣路易斯县"
  ],
  "availableLangs": [
    "zh",
    "en"
  ],
  "categories": [
    "category-geography"
  ],
  "coordinates": {
    "latitude": 38.63,
    "longitude": -90.36
  },
  "createdAt": "2026-10-29T03:05:30+08:00",
  "id": "place_us_mo_st_louis_county",
  "lang": "en",
  "placeKind": "county",
  "revision": 3,
  "slug": "mo-st-louis-county",
  "sources": [
    {
      "id": "enwiki",
      "title": "St. Louis County (Wikipedia)",
      "url": "https://en.wikipedia.org/wiki/St._Louis_County"
    },
    {
      "id": "uscb2023",
      "title": "U.S. Census Bureau 2023 FIPS state and county codes",
      "url": "https://www.census.gov/library/reference/code-lists/ansi.html"
    }
  ],
  "status": "published",
  "summary": "St. Louis County is a county in Missouri, United States, with county seat Clayton.",
  "tags": [],
  "title": "St. Louis County",
  "type": "place",
  "updatedAt": "2026-10-29T03:05:30+08:00",
  "updatedBy": "user:admin"
}
---

# St. Louis County

St. Louis County is a county in Missouri, United States, with county seat Clayton.

## Administrative divisions

St. Louis County is a county in Missouri, United States; the county seat is Clayton[^uscb2023].

## Basic facts

- State: [Missouri](/en/places/missouri.html)
- County seat: Clayton[^uscb2023]
- Division level: county[^uscb2023]

## Parent division

Located in [Missouri](/en/places/missouri.html).

更新时间：2026-10-29

## 标签


## 关系


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## 来源

- St. Louis County (Wikipedia)：https://en.wikipedia.org/wiki/St._Louis_County 
- U.S. Census Bureau 2023 FIPS state and county codes：https://www.census.gov/library/reference/code-lists/ansi.html