Founding year: the first Marissa Township post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Marissa Township’s History grade
On its age, its old homes and the National Register, Marissa Township is more historic than 85% of U.S. towns. All 3 inputs are above most U.S. towns; its share of homes from before 1940 ranks highest and its National Register listings lowest.
A
HistoryA character grade: shown, never part of Marissa Township’s overall grade.
Few Illinois towns list much on the Register (a typical Illinois town has 0.5 per 10,000 residents, the U.S. 2.4), so Marissa Township’s 5.4 sits above most of its state (76% of Illinois towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would still be A−. The pre-1940 share is a Census survey estimate (±6.1 points). The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Marissa Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Peaked at 2,568 in 1980; 1,833 people lived here in 2020.
14 censuses, 1890–2020.
U.S. Census Bureau decennial counts, from the census table on Marissa Township’s Wikipedia page.
On the map
Marissa Township on the map, 1912 to 1991
Every edition of the U.S. Geological Survey’s map of Marissa Township. Tap a year, or press play to watch the town change.
1912New Athens sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Marissa Township.
Before 1700, the Marissa area was inhabited by various Native American tribes. Among them were Kaskaskias, Peorias, Cahokias, Iroquois, and Michiganies. However, the most prevalent in the immediate area were probably the Tamaroas. It is known that just south of Marissa Cemetery, on a hill at 321 Doza Creek Road, a settlement existed as many artifacts have been recovered over the years. Also, there are still the remains of a trail that was used by the tribes as they traveled east and west. Evidence of this can still be seen just north of the dwelling at 132 Doza Creek Road. The three feet deep trench running through the woods was worn by foot and horse traffic, some pulling two pole skids carrying possessions. During the early 1700s, settlers first made their appearance in the region. French hunters and trappers ventured into the area in quest of its plentiful game. One of the first was…
The Marissa Township post office opened in 1846, the earliest record of the town by name (U.S. post office records).
How does Marissa Township rank for history?
Marissa Township is more historic than 85% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Marissa Township?
25% of Marissa Township’s homes were built before 1940 (Census estimate, ±6.1 points), against a typical 11% for an Illinois town; the median home was built in 1970.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikimedia Commons (1), Wikidata (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.