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 Moderate-density area
- $63,851
- Median income Near-median income area
- $188,900
- Median home value Near-median home value
- 18.9%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 37618 (Bluff City, TN) rose +4.8% from 2023 to 2024. The all-transactions index moved from 262.9 in 2023 to 275.4 in 2024 (2000 = 100).
ZIP code 37618 is a mid-sized community (a standard USPS delivery area) in Bluff City, Sullivan County, Tennessee, home to 12,747 residents across 178.5 square miles, a density of 71 people per square mile, in the New York time zone.
ZIP 37618 reports a modest median household income of $63,851 (4% below the average Tennessee ZIP), while per-capita income is $32,849. The poverty rate is 13.9%, with unemployment at 7.9%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $188,900 (24% below the average Tennessee ZIP), and median rent is $920; owner occupancy is 81.6%.
Educational attainment sits below the national norm: 18.9% of adults hold a bachelor's degree or higher, the median age is 45.1, and the average commute is 25 minutes. The page also surfaces 6 ZIP codes within roughly 10 miles and 6 more in Sullivan County, so 37618 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 37618
Top 5 sectors by establishment count in Bluff City, TN
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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, 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; 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 ZIP avg
$32,849
Per Capita Income
13.9%
Poverty Rate
7.9%
Unemployment Rate
25.3 min
Mean Commute Time
How ZIP 37618 ranks among Tennessee ZIPs
Bluff City, TN household income vs. every Tennessee ZIP code
Median household income among 593 reporting Tennessee ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$63,851 Top 44% higher than 56% of 593 Tennessee ZIPs
Each bar is a $20K-wide band; taller bars hold more Tennessee 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?
Housing stock: occupied vs vacant
6,046housing units
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 ZIP avg
$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.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 37618, both outside TN so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (12,747 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Sullivan County
Related Areas
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.
Related
Take this with you
What to do with ZIP 37618's numbers, next.
- See how ZIP 37618 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Bluff City, TN ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.