Sidney ZIP Code List — Richland County, MT

There is one unique ZIP code in Sidney, Montana and it is 59270. Area code: 406.

ZIP codes

891.03

sq mi land

8.72

sq mi water

406

area code

Sidney, MT ZIP code map

About Sidney, MT

Sidney, Montana, is a charming city nestled in the northeastern part of the state. This vibrant community serves as the county seat of Richland County and boasts a rich agricultural heritage. Sidney offers a blend of small-town charm and modern amenities, making it a unique place to live and visit.

Location & geography

Sidney is located in Richland County, Montana, and covers a vast land area of 891.03 square miles, complemented by a water area of 8.72 square miles. The city is surrounded by various small towns and cities, including Fairview, which is approximately 13 miles to the east, and Watford City, North Dakota, located about 30 miles to the north. The terrain is characterized by rolling plains typical of eastern Montana, with the Yellowstone River flowing nearby, providing scenic views and recreational opportunities.

Community & economy

The character of Sidney is defined by its friendly residents and a strong sense of community. The economy is primarily driven by agriculture, with many residents involved in farming and ranching, contributing to the local food supply and economy. Daily life in Sidney reflects a blend of rural traditions and modern conveniences, with various local shops, restaurants, and annual events that foster a tight-knit community spirit.

Transportation

Transportation in Sidney is facilitated by Montana Highway 16, which connects the city with the surrounding regions. The nearest major airport is the Sidney-Richland Municipal Airport, providing access for both commercial flights and private aviation. Public transit options are limited, but the city is easily navigable by car, and many residents enjoy biking around town.

History

Sidney was founded in the early 1900s and quickly became a hub for settlers drawn to the fertile land of the region. The city's development was heavily influenced by the arrival of the railroad and the establishment of agriculture as the key industry. Notable events in its history include the construction of the Sidney Sugar Company, which played a significant role in the local economy during the 20th century.

Did you know?

One surprising fact about Sidney, Montana, is that it hosts the annual Richland County Fair, which attracts visitors from all around the region and celebrates local culture and agriculture. Additionally, the city is known for having one of the largest cattle ranches in Montana in the surrounding area, showcasing its agricultural prominence.

ZIP codes for Sidney, MT (1)

ZIP code	City	County	Map
59270	Sidney	Richland	View map

Demographics & statistics

8,585

Population

39.5

Median age

$62,500

Median household income

$34,891

Per capita income

$249,600

Median home value

$827

Median monthly rent

68.3%

Home ownership

7.7%

Poverty rate

3.9%

Unemployment

3,126

Housing units

12.3%

Bachelor's or higher

Age distribution

Male Female

300

Under 5

298

280

5–9

277

330

10–14

328

312

15–19

310

154

20–24

152

573

25–34

569

567

35–44

563

478

45–54

475

263

55–59

261

317

60–64

315

459

65–74

455

232

75–84

231

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,158	25.1%
18 and over	6,427	74.9%
65 and over	1,463	17.0%
Median age	39.5 years

Race & ethnicity

White 84.8%

Two or more races 5.6%

Hispanic or Latino 4.4%

Other race 3.7%

Native Hawaiian / Pacific Islander 1.2%

American Indian / Alaska Native 0.2%

Group	Count	%
White	7,617	84.8%
Two or more races	505	5.6%
Hispanic or Latino	399	4.4%
Other race	332	3.7%
Native Hawaiian / Pacific Islander	109	1.2%
American Indian / Alaska Native	18	0.2%

Household income

Under $10k 7.2%

$10k–$15k 3.9%

$15k–$25k 9.5%

$25k–$35k 7.4%

$35k–$50k 14.2%

$50k–$75k 12.9%

$75k–$100k 12.0%

$100k–$150k 19.5%

$150k–$200k 6.9%

$200k+ 6.6%

Range	% of households
Under $10k	7.2%
$10k–$15k	3.9%
$15k–$25k	9.5%
$25k–$35k	7.4%
$35k–$50k	14.2%
$50k–$75k	12.9%
$75k–$100k	12.0%
$100k–$150k	19.5%
$150k–$200k	6.9%
$200k+	6.6%
Median income	$62,500

Housing

Home values

Under $50k 6.1%

$50k–$100k 11.6%

$100k–$150k 6.1%

$150k–$200k 10.3%

$200k–$300k 28.3%

$300k–$500k 26.4%

$500k–$1M 7.9%

$1M+ 3.2%

Housing overview

Metric	Value
Median home value	$249,600
Median rent / month	$827
Owner occupied	68.3%
Renter occupied	31.7%
Vacant	17.6%
Single-family detached	62.3%
Large apartment buildings	6.9%
Mobile homes	13.5%
Median rooms	5.7
Avg household size (owned)	2.53

Year built

Era	%
2020 or later	0.0%
2010–2019	22.7%
2000–2009	7.2%
1990–1999	8.2%
1980–1989	12.3%
1970–1979	19.4%
1960–1969	6.4%
1950–1959	10.8%
1940–1949	2.1%
1939 or earlier	10.9%

Bedrooms

Size	% of units
No bedroom (studio)	2.8%
1 bedroom	9.1%
2 bedrooms	28.9%
3 bedrooms	30.8%
4 bedrooms	16.5%
5+ bedrooms	12.0%

Vehicles per household

Vehicles	% of households
No vehicle	9.2%
1 vehicle	20.7%
2 vehicles	41.6%
3 or more	28.6%

Heating fuel

Fuel type	%
Utility gas	56.1%
Electricity	31.8%
Propane / LP gas	11.3%
Fuel oil	0.1%
Wood	0.2%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	1,645	47.2%
Cohabiting couple	254	7.3%
Male householder, no spouse	882	25.3%
Female householder, no spouse	705	20.2%
Households with children under 18	836	24.0%
Households with seniors (65+)	1,055	30.3%
Average household size	2.45

Marital status

Status	Male	Female
Never married	33.2%	19.1%
Married	47.4%	54.4%
Separated	1.9%	0.5%
Widowed	4.8%	12.1%
Divorced	12.6%	13.9%

Education

Less than 9th grade 1.0%

Some HS, no diploma 4.0%

HS graduate 43.1%

Some college, no degree 28.1%

Associate's degree 11.6%

Bachelor's degree 9.8%

Graduate / professional 2.4%

Metric	%
HS diploma or higher	95.1%
Bachelor's or higher	12.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	111	5.2%
Kindergarten	133	6.2%
Elementary school	972	45.5%
High school	440	20.6%
College / grad school	480	22.5%

Employment

Industry of employment

Agriculture & mining 14.9%

Education & healthcare 13.9%

Construction 10.9%

Retail trade 10.5%

Professional & management 8.9%

Finance & real estate 8.4%

Arts, food & hospitality 7.7%

Transportation & utilities 7.2%

Manufacturing 6.1%

Other services 5.1%

Public administration 3.0%

Information 2.0%

Wholesale trade 1.5%

Occupation

Category	%
Management, business & arts	29.4%
Service	9.1%
Sales & office	23.8%
Natural resources & construction	20.1%
Production & transportation	17.5%

Employment type

Type	%
Private sector	78.8%
Government	10.3%
Self-employed	9.5%
Unpaid family workers	1.5%

Commute

Method	%
Drive alone	77.6%
Carpool	8.7%
Public transit	0.0%
Walk	7.9%
Other means	0.0%
Avg commute (minutes)	19.6

Poverty

All people 7.7%

Under 18 years 3.7%

18 and over 9.0%

Married-couple families 4.5%

Female-led households 10.4%

Income support

Source	% of households
Social Security	29.3%
Retirement income	14.5%
Supplemental Security	3.4%
Cash public assistance	3.9%
Food stamps / SNAP	5.1%

Health indicators

Condition	%
High blood pressure	29.0%
High cholesterol	30.1%
Heart disease	6.1%
Stroke	2.8%
Asthma	9.9%
Arthritis	25.8%
Kidney disease	2.6%
Pulmonary disease	6.1%
Cancer	7.0%

Behavior / access	%
Binge drinking	22.6%
No physical activity	21.0%
Less than 7 hrs sleep	28.9%
Fair or poor health	11.4%
Poor mental health	12.7%
Poor physical health	9.7%
No health insurance	11.8%
Visited doctor (checkup)	69.7%
Visited dentist	64.9%
Cholesterol screening	88.2%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	424	6.6%

Disability	%
Any disability	14.5%
Under 18	0.5%
18–64 years	12.4%
65 and over	42.6%

Health insurance coverage

Type	%
Private insurance	74.2%
Public insurance	31.3%
Uninsured under 19	5.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,987	93.0%
Spanish	60	0.8%
Other Indo-European	50	0.6%
Asian & Pacific Islander	10	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,302	96.7%
Born in same state	8,226	95.8%
Born in different state	4,841	56.4%
Foreign born	76	0.9%
Naturalized citizen	283	3.3%
Not a US citizen	69	24.4%

Ancestry

Ancestry	Count	%
Polish	1,591	18.5%
Italian	1,029	12%
French	565	6.6%
Arab	418	4.9%
Dutch	213	2.5%

Ancestry	Count	%
German	211	2.5%
English	164	1.9%
Irish	56	0.7%
Norwegian	4	0%

Technology access

Metric	% of households
Computer access	40.6%
Internet access	89.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Sidney, MT?

Sidney, MT has one ZIP code: 59270.

What is the main ZIP code for Sidney, MT?

The primary ZIP code for Sidney, MT is 59270. The city uses area code 406 for phone service.

What county is Sidney, MT in?

Sidney is located in Richland County, Montana.

How many ZIP codes are in Sidney, MT?

Sidney, MT has 1 ZIP code.

What is the ZIP code for Downtown Sidney and the historic Main Street business district?

Downtown Sidney and the Main Street business district are located in ZIP code 59270, which serves as the central commercial hub of Sidney, Montana.

What ZIP code covers the Sidney High School and the surrounding educational facilities in Richland County?

Sidney High School and the surrounding educational institutions in Sidney are located in ZIP code 59270, the primary ZIP code serving all of Sidney, Montana.