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Where am ILOCATED

Grundy County, Missouri

Grundy County, Missouri, has 9,744 residents (July 2025 estimate). Its county seat is Trenton. It uses Central Time and covers 435 sq mi (1,127 km²) of land.

Kansas CitySt. LouisSpringfield
Grundy County in Missouri
TrentonSpickardGaltLeisure LakeLaredo
Grundy County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
9,744
Land area
435 sq mi (1,127 km²)
County seat or government
Trenton
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$51,975 ± $3,908
Median home value
$112,500 ± $10,773
Median rent, with utilities
$696 ± $72
Homes lived in by their owners
69.7% ± 3.3 points
County type
County
Metro or micro area
Outside any metro or micro area
Water area
2.75 sq mi (7.12 km²)
State
Missouri
County code (FIPS)
29079
Coordinates (central point)
40.112540, -93.565054
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Grundy County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 646837,631 people
  2. 646482,396 people
  3. 64679921 people
  4. 64642804 people
  5. 64641625 people
  6. 64635508 people
  7. 64652346 people

7 ZIP Code areas overlap Grundy County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Grundy County, largest first

  1. Trenton Township5,988 people
  2. Jefferson Township537 people
  3. Franklin Township505 people
  4. Lincoln Township496 people
  5. Liberty Township461 people
  6. Madison Township398 people
  7. Marion Township329 people
  8. Washington Township317 people
  9. Wilson Township285 people
  10. Jackson Township140 people
  11. Harrison Township139 people
  12. Taylor Township117 people
All 13
  1. Myers Township75 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Missouri, by county

School districts in Grundy County, largest first

  1. Trenton R-IX School District7,192 people
  2. Princeton R-V School District2,495 people
  3. Tri-County R-VII School District2,302 people
  4. Meadville R-IV School District1,344 people
  5. Grundy County R-V School District1,241 people
  6. Spickard R-II School District627 people
  7. Pleasant View R-VI School District565 people
  8. Laredo R-VII School District395 people
  9. Newtown-Harris R-III School District394 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Trenton, Missouri (city)5,536 people
  2. Spickard, Missouri (city)253 people
  3. Galt, Missouri (city)203 people
  4. Leisure Lake, Missouri (CDP)175 people
  5. Laredo, Missouri (city)109 people
  6. Brimson, Missouri (village)81 people
  7. Tindall, Missouri (town)74 people
  8. Edinburg, Missouri (CDP)63 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Mercer County, Missouri21 mi north
  2. Livingston County, Missouri23 mi south
  3. Daviess County, Missouri24 mi southwest
  4. Sullivan County, Missouri25 mi east
  5. Harrison County, Missouri28 mi northwest
  6. Linn County, Missouri30 mi southeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.