What is the population of Portland?

The population of Portland, IL is 395.

Where is Portland located?

Portland, IL is located at latitude 41.6625300 and longitude -89.9801200. It is in United States.

What is the area of Portland?

The area of Portland, IL is 35.65 km².

What is the elevation of Portland?

Portland, IL has an elevation of 190 meters (623 feet) above sea level.

What time zone is Portland in?

Portland, IL is in the America/Chicago time zone.

What state is Portland in?

Portland is in the state of Illinois, United States.

What county is Portland, IL in?

Portland is in Whiteside County, Illinois.

How has the population of Portland changed?

The population of Portland, IL has decreased from 422 (2010) to 395 (2020), a change of -6.4%.

Portland, Illinois

Portland: township in Whiteside County, Illinois, United States of America

About

Portland is a township located in the county of Whiteside in the U.S. state of Illinois. Its population at the 2010 census was 422 and a population density of 12 people per km². After 10 years in 2020 city had an estimated population of 395 inhabitants.

Portland locator map — Location of Portland on Illinois map.

Quick Facts about Portland

Population	395 (2020)
Country	United States of America
State	Illinois (United States)
County	Whiteside County
Area	35.65 km²
Latitude & Longitude	41.6625,-89.9801
Time Zone	America/Chicago
Local time	00:41:58 (17th April 2026)
Density	11 Pop. per km² as of 2020
Population growth	-6.84% (2010-2020)
Weather	81℉ Mostly Sunny then Chance Showers And Thunderstorms 7-days weather

Map highlighting Portland Township Whiteside County Illinois locator map image

Geography

Portland is located at 41°39'45"N 89°58'48"W (41.6625300, -89.9801200).

Portland map

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Weather

81°F

Mostly Sunny then Chance Showers And Thunderstorms

10 to 20 mph S Friday

A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 81. South wind 1...

7-Day Forecast

Demographics

According to census records, the population of Portland decreased by 6.84% in 10 years.

Year	Population	% Change	Method
2010	422	-	census
2011	424	0.47%	estimation process
2012	421	-0.71%	estimation process
2013	418	-0.72%	estimation process
2014	416	-0.48%	estimation process
2015	415	-0.24%	estimation process
2016	412	-0.73%	estimation process
2017	409	-0.73%	estimation process
2018	406	-0.74%	estimation process
2019	403	-0.74%	estimation process
2020	395	-2.03%	estimation process

Portland Corners

Nearby Schools and Colleges

Schools and campuses linked to Portland, IL. Select a name to open its map and contact details.

Code	Name	City	ZIP
147396	Morrison Institute of Technology	Morrison (IL)	61270-2959

Nearby Transit Stations (9)

Rail and bus stations connected to Portland, IL. Select a station to open its map and address details.

Code	Name	Address	Type
KEE	Kewanee	Loomis and North Tremont Sts.	RAIL
MLI	Moline, Illinois	1200 River Drive	BUS
RKI	Rock Island, IL	3500 5th Avenue	BUS
DVP	Davenport, Iowa	304 West River Drive	BUS
PCT	Princeton	107 Bicentennial Dr.	RAIL

Nearby Post Offices

Closest post offices linked to Portland.

Post Office Name	City	ZIP
Prophetstown Post Office	Prophetstown (IL)	61277

Other places with the same name (13)

Portland, Oregon The twenty-sixth most populous city in the United States and the center of the Portland metropolitan area. with a population of 656,751 people.
Portland, Maine The most populous city in Cumberland County, Maine. with a population of 66,803 people.
Portland, Texas city in Texas, United States with a population of 17,768 people.
Portland, Tennessee city in Sumner County, Tennessee, United States with a population of 13,301 people.
Portland, Connecticut town in Connecticut, United States with a population of 9,213 people.
Portland, Indiana city in and the county seat of Jay County, Indiana, United States of America with a population of 5,992 people.
Portland, New York town in Chautauqua County, New York, United States of America with a population of 4,551 people.
Portland, Michigan city in Michigan, United States with a population of 3,490 people.
Portland, Wisconsin town in Monroe County, Wisconsin, United States of America with a population of 1,065 people.
Portland, Wisconsin town in Dodge County, Wisconsin, United States of America with a population of 840 people.
Portland, North Dakota city in Traill County, North Dakota, United States of America with a population of 585 people.
Portland, Pennsylvania borough in Pennsylvania, United States of America with a population of 512 people.
Portland, Arkansas city in Arkansas, USA with a population of 382 people.

Other cities in Whiteside County

Cities, towns, neighborhoods & other populated places in Whiteside County , IL. (more)

City Name	Population	Title
Sterling	14,313	City in Whiteside County, Illinois, United States
Rock Falls	8,648	City in Illinois
Morrison	3,950	City in Whiteside County, Illinois, United States of America
Fulton	3,285	City in Illinois
Prophetstown	1,919	City in Whiteside County, Illinois, United States
Erie	1,482	Village in Whiteside County, Illinois
Union Grove	1,113	Township in Whiteside County, Illinois
Garden Plain	999	Township of Illinois
Albany	856	Village in Whiteside County, Illinois, United States
Tampico	721	Township in Whiteside County, Illinois
Lyndon	604	City in Illinois, United States of America
Ustick	581	Township in Whiteside County, Illinois
Fenton	507	City in Whiteside County, Illinois, United States of America
Round Grove	346	Township in Livingston County, Illinois
Hahnaman	330	Township of Illinois
Coleta	151	Town