Bar Nunn is a town in Natrona County, Wyoming, home to about 3,008 people across 2.1 square miles. It has no ZIP code of its own: it’s part of 82601.
Homes sold for a median of $174 per square foot in the three months ending August 2026, a seller’s market.
Mostly Casper; part is in Bar Nunn
Each card is that ZIP code’s whole market, including any part outside Bar Nunn. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Bar Nunn’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Denver International Airport (DEN)223 miles away |
|---|---|
| Closer regional airport | Casper-Natrona County International Airport (CPR)8 miles away |
| Nearest city of 250,000+ | Denver, CO226 miles away |
| Nearest city of 1 million+ | Phoenix, AZ713 miles away |
Straight-line distances from the center of Bar Nunn; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Bar Nunn had 2,981 residents in the 2020 census, up 218% since 2000.
It’s the 25th largest of 192 towns in Wyoming by population.
Natrona County grew from 1,785 residents in 1900 to 79,955 in 2020.
Natrona County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 17°F. About 13.6 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Casper Wwtp, WY weather station (2 miles away).
31,602 jobs at 3,071 businesses in Natrona County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
810 doctors and other health care providers list an office in Bar Nunn.
Nearest hospitals
Providers with an office here
| Primary care doctors | 86 |
|---|---|
| Specialist doctors | 119 |
| Dentists | 44 |
| Nurse practitioners and physician assistants | 128 |
| Mental health providers | 337 |
| Physical and occupational therapists | 71 |
| Optometrists | 18 |
| Chiropractors | 7 |
| Pharmacies | 8 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (9 nearby)
Grocery stores
Pharmacies
Libraries (1 nearby)
Museums (5 nearby)
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Natrona County School District #1. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Bar Nunn ElementaryCasper | Pre-K–5 | 227 | Public | 5.1 mi |
| Lincoln Elementary SchoolCasper | Pre-K–5 | 433 | Public | 1.1 mi |
| Sagewood ElementaryCasper | Pre-K–5 | 340 | Public | 1.6 mi |
| Crest Hill ElementaryCasper | K–5 | 234 | Public | 3.0 mi |
| Park ElementaryCasper | K–5 | 344 | Public | 0.6 mi |
| Casper Classical AcademyCasper | 6–9 | 516 | Public | 0.9 mi |
| Dean Morgan Middle SchoolCasper | 6–8 | 613 | Public | 1.0 mi |
| Natrona County High SchoolCasper | 9–12 | 1,703 | Public | 0.7 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Excel Academy Private SchoolCasper | Pre-K–8 | 11 | Nonsectarian | 0.1 mi |
| Montessori School of CasperCasper | Pre-K–K | 10 | Nonsectarian | 0.6 mi |
| Mountain Road Christian AcademyCasper | 1–4 | 13 | Seventh-day Adventist | 2.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Casper, Hartrandt, Mills, Casper Mountain, Homa Hills and Antelope Hills.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.