Princeton ZIP Code List — Latah County, ID

There is one unique ZIP code in Princeton, Idaho and it is 83857. Area code: 208.

ZIP codes

67.29

sq mi land

0.06

sq mi water

208

area code

Princeton, ID ZIP code map

About Princeton, ID

Princeton, Idaho, is a small and charming city located in Latah County. Known for its scenic surroundings and a close-knit community, Princeton provides a peaceful atmosphere for residents and visitors alike. This tranquil city is part of the larger Palouse region, which is celebrated for its stunning landscapes and agricultural richness.

Location & geography

Princeton is situated in north-central Idaho, approximately 23 miles east of Moscow and 31 miles south of Pullman, Washington. The city covers a land area of 67.29 square miles and includes a modest water area of 0.06 square miles. This region features a mix of rolling hills and fertile farmland, characteristic of the Palouse region, which is renowned for its agricultural output.

Community & economy

The community of Princeton is characterized by its friendly atmosphere and strong sense of belonging among residents. The local economy primarily revolves around agriculture and several small businesses that serve the community's needs. Daily life in Princeton often includes outdoor activities, as residents take full advantage of the region's natural beauty and vast landscapes.

Transportation

Princeton is accessible via Idaho State Highway 6, which connects it to nearby towns and cities, ensuring a smooth flow of traffic. The nearest major airport is Pullman-Moscow Regional Airport, located about 30 miles to the northwest, providing access to regional flights. Public transportation options are limited, though local services occasionally facilitate travel for residents.

History

Princeton was established in the late 19th century and has a rich agricultural heritage that continues to shape its identity today. The city grew as a hub for the surrounding agricultural industry, providing essential services to local farmers and helping to develop the regional economy. Notable events in Princeton's history include the establishment of local schools and community organizations that foster regional development.

Did you know?

Princeton is home to a unique natural landscape, with the vibrant green hills of the Palouse region that attract visitors seeking outdoor adventures. A little-known fact about Princeton is that it serves as a peaceful retreat for artists and writers looking for inspiration in its serene surroundings.

ZIP codes for Princeton, ID (1)

ZIP code	City	County	Map
83857	Princeton	Latah	View map

Demographics & statistics

1,294

Population

42.0

Median age

$93,295

Median household income

$31,285

Per capita income

$281,300

Median home value

Median monthly rent

100.0%

Home ownership

2.6%

Poverty rate

4.7%

Unemployment

456

Housing units

32.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

25–34

35–44

45–54

55–59

60–64

65–74

102

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	460	35.5%
18 and over	834	64.5%
65 and over	226	17.5%
Median age	42.0 years

Race & ethnicity

White 99.6%

Black or African American 0.4%

Group	Count	%
White	1,289	99.6%
Black or African American	5	0.4%

Household income

$10k–$15k 5.0%

$15k–$25k 11.2%

$25k–$35k 10.7%

$35k–$50k 3.3%

$50k–$75k 16.7%

$75k–$100k 20.0%

$100k–$150k 20.0%

$150k–$200k 9.4%

$200k+ 3.7%

Range	% of households
$10k–$15k	5.0%
$15k–$25k	11.2%
$25k–$35k	10.7%
$35k–$50k	3.3%
$50k–$75k	16.7%
$75k–$100k	20.0%
$100k–$150k	20.0%
$150k–$200k	9.4%
$200k+	3.7%
Median income	$93,295

Housing

Home values

Under $50k 6.1%

$50k–$100k 11.4%

$100k–$150k 9.6%

$150k–$200k 7.0%

$200k–$300k 17.1%

$300k–$500k 41.4%

$500k–$1M 1.8%

$1M+ 5.5%

Housing overview

Metric	Value
Median home value	$281,300
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	0.0%
Single-family detached	88.2%
Large apartment buildings	0.0%
Mobile homes	4.8%
Median rooms	6.3
Avg household size (owned)	2.84

Year built

Era	%
2020 or later	0.0%
2010–2019	3.5%
2000–2009	19.1%
1990–1999	7.7%
1980–1989	16.0%
1970–1979	24.8%
1960–1969	15.8%
1950–1959	0.0%
1940–1949	1.5%
1939 or earlier	11.6%

Bedrooms

Size	% of units
No bedroom (studio)	3.5%
1 bedroom	0.0%
2 bedrooms	21.5%
3 bedrooms	55.7%
4 bedrooms	16.2%
5+ bedrooms	3.1%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	12.3%
2 vehicles	26.3%
3 or more	61.4%

Heating fuel

Fuel type	%
Electricity	39.7%
Propane / LP gas	16.4%
Fuel oil	11.8%
Wood	32.0%

Households & families

Household type	Count	%
Married-couple family	305	66.9%
Cohabiting couple	0	0.0%
Male householder, no spouse	81	17.8%
Female householder, no spouse	70	15.4%
Households with children under 18	170	37.3%
Households with seniors (65+)	148	32.5%
Average household size	2.84

Marital status

Status	Male	Female
Never married	3.0%	16.4%
Married	78.7%	73.6%
Separated	1.6%	0.0%
Widowed	0.9%	0.0%
Divorced	15.7%	10.0%

Education

Less than 9th grade 1.9%

Some HS, no diploma 4.9%

HS graduate 27.7%

Some college, no degree 22.8%

Associate's degree 10.3%

Bachelor's degree 18.6%

Graduate / professional 13.8%

Metric	%
HS diploma or higher	93.2%
Bachelor's or higher	32.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	23	8.6%
Kindergarten	29	10.9%
Elementary school	182	68.4%
High school	32	12.0%
College / grad school	0	0.0%

Employment

Industry of employment

Manufacturing 33.8%

Education & healthcare 19.9%

Wholesale trade 11.5%

Public administration 9.4%

Professional & management 7.9%

Retail trade 7.1%

Finance & real estate 3.7%

Transportation & utilities 2.9%

Agriculture & mining 2.6%

Construction 1.3%

Occupation

Category	%
Management, business & arts	40.1%
Service	3.9%
Sales & office	22.3%
Natural resources & construction	22.5%
Production & transportation	11.3%

Employment type

Type	%
Private sector	61.5%
Government	26.7%
Self-employed	11.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	65.2%
Carpool	2.6%
Public transit	0.0%
Walk	5.2%
Other means	1.3%
Avg commute (minutes)	24.0

Poverty

All people 2.6%

Under 18 years 0.0%

18 and over 4.1%

Married-couple families 2.3%

Female-led households 0.0%

Income support

Source	% of households
Social Security	44.7%
Retirement income	26.1%
Supplemental Security	13.4%
Cash public assistance	0.0%
Food stamps / SNAP	1.5%

Health indicators

Condition	%
High blood pressure	32.2%
High cholesterol	32.3%
Heart disease	6.7%
Stroke	3.1%
Asthma	9.8%
Arthritis	24.7%
Kidney disease	3.0%
Pulmonary disease	6.8%
Cancer	7.1%

Behavior / access	%
Binge drinking	15.7%
No physical activity	20.8%
Less than 7 hrs sleep	31.1%
Fair or poor health	13.4%
Poor mental health	12.9%
Poor physical health	11.0%
No health insurance	12.4%
Visited doctor (checkup)	70.6%
Visited dentist	64.3%
Cholesterol screening	89.0%
Teeth loss	12.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	100	12.0%

Disability	%
Any disability	13.8%
Under 18	13.5%
18–64 years	6.6%
65 and over	34.1%

Health insurance coverage

Type	%
Private insurance	61.4%
Public insurance	30.6%
Uninsured under 19	43.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,111	85.9%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,265	97.8%
Born in same state	1,265	97.8%
Born in different state	376	29.1%
Foreign born	0	0.0%
Naturalized citizen	29	2.2%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	312	24.1%
Italian	77	6%
English	52	4%
Arab	46	3.6%

Ancestry	Count	%
Polish	33	2.6%
Dutch	33	2.6%
German	10	0.8%

Technology access

Metric	% of households
Computer access	35.2%
Internet access	96.1%

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

Frequently asked questions

What is the ZIP code for Princeton, ID?

Princeton, ID has one ZIP code: 83857.

What is the main ZIP code for Princeton, ID?

The primary ZIP code for Princeton, ID is 83857. The city uses area code 208 for phone service.

What county is Princeton, ID in?

Princeton is located in Latah County, Idaho.

How many ZIP codes are in Princeton, ID?

Princeton, ID has 1 ZIP code.

What ZIP code should I use for mailing letters to businesses in downtown Princeton, Idaho?

Downtown Princeton, Idaho uses ZIP code 83857 for all mail delivery.

If I'm sending a package to someone living near the University of Idaho's Moscow campus but in Princeton, what ZIP code do I need?

Princeton, Idaho residents use ZIP code 83857 regardless of their proximity to Moscow, as it is the only ZIP code serving the city.