Bluff City, TN · standard

ZIP Code 37618

Sullivan County, Tennessee — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

12,747
71/sq mi
$63,851
Median income
$188,900
Median home value
18.9%
Bachelor's or higher

The verdict

Bluff City pairs a below-median household income with below-median home values, in a rural, homeowner-dominated area.

36th pct
household income, US ZIPs
40th pct
home value, US ZIPs
71
people per sq mi
82%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 37618 against every reporting US ZIP.

ZIP code 37618 is classified by USPS as a standard delivery area and covers roughly 178.5 square miles in Bluff City, Sullivan County, Tennessee. The area is home to 12,747 residents, producing a population density of 71 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 37618 against Tennessee and the nation.

On the economic side, the median household income for ZIP 37618 sits at $63,851 (4% below the Tennessee average), while per-capita income is $32,849. The poverty rate stands at 13.9% and the unemployment rate at 7.9%. On housing, the median home value is $188,900 (24% below the state average) with median rent at $920 per month, and 81.6% of occupied units are owner-occupied, a direct signal of whether 37618 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 18.9% of adults hold a bachelor's degree or higher, the median age is 45.1, and the average commute is 25 minutes. We also surface 6 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Sullivan County, so you can benchmark 37618 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 37618

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 37618.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 37618, Bluff City, TN · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

12,747

Population

178.5

Area (sq mi)

71

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 37618?

45.1

Median Age

50.5%

Male

49.5%

Female

1.3%

Foreign-Born

White 94.5%
African American 1.9%
Asian 0.6%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.2%
Hispanic or Latino 0.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$63,851

Median Household Income

-4% vs state

$32,849

Per Capita Income

13.9%

Poverty Rate

7.9%

Unemployment Rate

25.3 min

Mean Commute Time

How ZIP 37618 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$63,851 36th percentile higher than 36% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 56.4%
Bachelor's Degree or Higher 18.9%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

6,046

Total Housing Units

5,291

Occupied Units

755

Vacant Units

2.37

Avg Household Size

Occupancy Type

Owner 81.6%
Renter 18.4%

$188,900

Median Home Value

-24% vs state

$920

Median Rent

1982

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+4.8%

YoY Change (2024)

275

HPI Index (2000 = 100)

+175%

Total Change Since 2000

Home values in ZIP 37618 have increased 4.8% over the past year (2024). Since 2000, this ZIP has seen +175% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.0% 162
2021 +14.9% 186
2022 +24.7% 232
2023 +13.3% 263
2024 +4.8% 275

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 135 business establishments in ZIP 37618, employing approximately 1,108 people with a combined annual payroll of $47,331,000.

135

Businesses

1,108

Employees

$47.3M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Construction 22 16.3%
Other services (except public administration) 22 16.3%
Retail trade 18 13.3%
Professional, scientific, and technical services 12 8.9%
Accommodation and food services 11 8.2%
Manufacturing 10 7.4%
Administrative and support and waste management and remediation services 10 7.4%
Wholesale trade 8 5.9%
Transportation and warehousing 6 4.4%
Arts, entertainment, and recreation 5 3.7%
Health care and social assistance 4 3.0%
Real estate and rental and leasing 3 2.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 37618 vs 37694 →

ZIP 37618 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 37618 ranks #5 by population — useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 37618 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 37618 ranks #3 of 7 neighboring ZIPs — local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
37694 Watauga, TN 1,955 6.7 mi
37643 Elizabethton, TN 33,689 7.3 mi
37686 Piney Flats, TN 7,072 7.8 mi
24201 Bristol, VA 17,116 10.2 mi
37620 Bristol, TN 39,102 8.5 mi
37601 Johnson City, TN 36,182 11.3 mi

More ZIP Codes in Sullivan County

Frequently Asked Questions

What county is ZIP code 37618 in?
ZIP code 37618 (Bluff City) is located in Sullivan County, Tennessee. Sullivan County contains multiple ZIP codes, see the full list at /counties/sullivan-tn.
What is the population of ZIP code 37618?
ZIP code 37618 in Bluff City, TN has a population of 12,747 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 37618?
The median household income in ZIP 37618 is $63,851, which is 16% below the national average of $76,288.
What is the average home value in ZIP 37618?
The median home value in ZIP 37618 is $188,900, which is 32% below the national average of $278,155.
What is the demographic makeup of ZIP 37618?
The largest racial group in ZIP 37618 is White at 94.5%. Hispanic or Latino residents make up 0.8% of the population.
How many businesses are in ZIP code 37618?
ZIP code 37618 has 135 business establishments employing approximately 1,108 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 37618?
The top industries by establishment count in ZIP 37618 are: Construction (22), Other services (except public administration) (22), Retail trade (18). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 37618?
According to the FHFA House Price Index, home values in ZIP 37618 increased by 4.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 175%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 37618?
In ZIP code 37618, 56.4% of residents aged 25+ have a high school diploma or higher, and 18.9% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 37618?
The mean commute time for workers in ZIP code 37618 is 25.3 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 37618?
In ZIP code 37618, approximately 81.6% of occupied housing units are owner-occupied and 18.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 37618?
The poverty rate in ZIP code 37618 is 13.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Official Data Resources for Bluff City, TN

Verify and explore additional data for this area using these official government sources.