---
{
  "adminArea": "United States · Massachusetts · Middlesex County",
  "aliases": [
    "米德尔塞克斯县"
  ],
  "availableLangs": [
    "zh",
    "en"
  ],
  "categories": [
    "category-geography"
  ],
  "coordinates": {
    "latitude": 42.466,
    "longitude": -71.36
  },
  "createdAt": "2026-10-29T03:05:28+08:00",
  "id": "place_us_ma_middlesex_county",
  "lang": "en",
  "placeKind": "county",
  "revision": 4,
  "slug": "ma-middlesex-county",
  "sources": [
    {
      "id": "enwiki",
      "title": "Middlesex County (Wikipedia)",
      "url": "https://en.wikipedia.org/wiki/Middlesex_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": "Middlesex County is a county in Massachusetts, United States, with county seat Cambridge.",
  "tags": [],
  "title": "Middlesex County",
  "type": "place",
  "updatedAt": "2026-10-29T03:05:28+08:00",
  "updatedBy": "user:admin"
}
---

# Middlesex County

Middlesex County is a county in Massachusetts, United States, with county seat Cambridge.

## Administrative divisions

Middlesex County is a county in Massachusetts, United States; the county seat is Cambridge[^uscb2023].

## Basic facts

- State: [Massachusetts](/en/places/massachusetts.html)
- County seat: Cambridge[^uscb2023]
- Division level: county[^uscb2023]

## Parent division

Located in [Massachusetts](/en/places/massachusetts.html).

更新时间：2026-10-29

## 标签


## 关系

- Located in：[Massachusetts](/en/places/massachusetts.html) 
- Contains places：[Cambridge](/en/places/ma-cambridge.html) 

## 正文反向链接

- [Massachusetts](/en/places/massachusetts.html)

## 来源

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