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.
- Construction
Construction
22 establishments
- Other services (except public administration)
Other services (except public administration)
22 establishments
- Retail trade
Retail trade
18 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
12 establishments
- Accommodation and food services
Accommodation and food services
11 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, 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
Who lives in ZIP 37618?
45.1
Median Age
50.5%
Male
49.5%
Female
1.3%
Foreign-Born
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
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?
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
$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)
How have home values changed over time?
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.
- 37620
Bristol (37620)
39,102 residents
- 37601
Johnson City (37601)
36,182 residents
- 37643
Elizabethton (37643)
33,689 residents
- 24201
Bristol (24201)
17,116 residents
- 37618 12,747
Bluff City (37618)
12,747 residents
- 37686 7,072
Piney Flats (37686)
7,072 residents
- 37694 1,955
Watauga (37694)
1,955 residents
What this shows Among its immediate neighbors, ZIP 37618 ranks #5 by population — useful context the national average alone can't give.
ZIP 37618 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 37686
Piney Flats (37686)
$84,264 median income
- 37694
Watauga (37694)
$81,250 median income
- 37618
Bluff City (37618)
$63,851 median income
- 37620
Bristol (37620)
$56,128 median income
- 37643
Elizabethton (37643)
$51,831 median income
- 37601
Johnson City (37601)
$50,686 median income
- 24201
Bristol (24201)
$48,764 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.
More ZIP Codes in Sullivan County
Related Areas
Frequently Asked Questions
What county is ZIP code 37618 in? ▼
What is the population of ZIP code 37618? ▼
What is the median household income in ZIP 37618? ▼
What is the average home value in ZIP 37618? ▼
What is the demographic makeup of ZIP 37618? ▼
How many businesses are in ZIP code 37618? ▼
What are the main industries in ZIP code 37618? ▼
How have home values changed in ZIP code 37618? ▼
What is the education level in ZIP code 37618? ▼
What is the average commute time in ZIP 37618? ▼
What percentage of residents own vs. rent in ZIP 37618? ▼
What is the poverty rate in ZIP code 37618? ▼
ZIP Code Research Guides
Official Data Resources for Bluff City, TN
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.