Comparison to Surrounding Areas
The median household income ($75,881) for 37840 is less than the median household income for Coalfield CDP ($90,104). But it's more than 37887 ($65,137), 37719 ($-1), 37748 ($64,883), 37770 ($47,835), 37830 ($72,269), 37845 ($15,486), 37710 ($28,362), 37716 ($64,915), Morgan County ($65,954), Roane County ($71,885), Anderson County ($66,183), Oliver Springs town ($51,183), and Petros CDP ($-1).
| 37840 | $75,881 |
| Coalfield CDP | $90,104 |
| Oliver Springs town | $51,183 |
| Petros CDP | $-1 |
| Anderson County | $66,183 |
| Morgan County | $65,954 |
| Roane County | $71,885 |
Get Median Household Income for all Zip Codes in Tennessee.
The average household income ($98,140) for 37840 is less than the average household income for Petros CDP ($325,743). But it's more than 37887 ($79,860), 37719 ($-1), 37748 ($83,749), 37770 ($65,465), 37830 ($97,132), 37845 ($19,747), 37710 ($41,591), 37716 ($87,394), Morgan County ($86,030), Roane County ($94,176), Anderson County ($88,830), Coalfield CDP ($89,721), and Oliver Springs town ($60,397).
| 37840 | $98,140 |
| Coalfield CDP | $89,721 |
| Oliver Springs town | $60,397 |
| Petros CDP | $325,743 |
| Anderson County | $88,830 |
| Morgan County | $86,030 |
| Roane County | $94,176 |
Get Average Household Income for all Zip Codes in Tennessee.
The per-capita income for 37840 is $39,417. The per capita income ($39,417) for 37840 is less than the per capita income for 37830 ($42,222) and Petros CDP ($181,571). But it's more than 37887 ($24,352), 37716 ($34,987), 37719 ($18,087), 37748 ($35,020), 37770 ($30,346), 37845 ($13,363), 37710 ($18,755), Morgan County ($32,330), Roane County ($39,403), Anderson County ($37,400), Coalfield CDP ($31,801), and Oliver Springs town ($25,413).
| 37840 | $39,417 |
| Coalfield CDP | $31,801 |
| Oliver Springs town | $25,413 |
| Petros CDP | $181,571 |
| Anderson County | $37,400 |
| Morgan County | $32,330 |
| Roane County | $39,403 |
Get Per-Capita Income for all Zip Codes in Tennessee.
6.7% of households make over $200,000 a year. The percent high income households (6.7%) for 37840 is less than the percent high income households for 37830 (11.2%), Anderson County (7.4%), Roane County (7.6%), and Petros CDP (23.2%). But it's more than 37887 (3.2%), 37748 (4.1%), 37770 (0.6%), 37845 (0.0%), 37710 (0.0%), 37716 (5.3%), 37719 (0.0%), Morgan County (4.4%), Coalfield CDP (3.7%), and Oliver Springs town (1.1%).
| 37840 | 6.7% |
| Coalfield CDP | 3.7% |
| Oliver Springs town | 1.1% |
| Petros CDP | 23.2% |
| Anderson County | 7.4% |
| Morgan County | 4.4% |
| Roane County | 7.6% |
Get High Income Households for all Zip Codes in Tennessee.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 37840 | $12,361 | $96,755 | $110,720 | $49,018 |
| Coalfield CDP | $-1 | $99,167 | $102,326 | $45,093 |
| Oliver Springs town | $-1 | $75,000 | $51,438 | $40,260 |
| Petros CDP | $-1 | $-1 | $-1 | $15,486 |
| Anderson County | $61,131 | $71,982 | $84,161 | $52,388 |
| Morgan County | $80,546 | $79,449 | $70,792 | $42,050 |
| Roane County | $72,152 | $84,170 | $87,289 | $48,239 |
Get Median Household Income by Age of Householder for all Zip Codes in Tennessee.
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Starting at $65.
All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 37840 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 37840 | +/-$23,516 | +/-$20,363 | +/-$8,473 | +/-3.4% | +/-$8,057 | +/-$10,933 | +/-$32,163 | +/-$9,045 |
| Coalfield CDP | +/-$35,987 | +/-$14,466 | +/-$4,829 | +/-4.5% | +/-$-1 | +/-$48,208 | +/-$52,005 | +/-$39,799 |
| Oliver Springs town | +/-$24,051 | +/-$11,948 | +/-$3,907 | +/-1.7% | +/-$-1 | +/-$54,491 | +/-$43,154 | +/-$37,392 |
| Petros CDP | +/-$-1 | +/-$365,249 | +/-$197,278 | +/-31.3% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$10,925 |
| Anderson County | +/-$2,450 | +/-$3,559 | +/-$1,394 | +/-1.0% | +/-$16,598 | +/-$7,042 | +/-$9,669 | +/-$4,937 |
| Morgan County | +/-$4,555 | +/-$11,830 | +/-$4,706 | +/-2.0% | +/-$14,767 | +/-$6,245 | +/-$8,585 | +/-$10,059 |
| Roane County | +/-$3,521 | +/-$4,302 | +/-$1,790 | +/-1.2% | +/-$6,070 | +/-$8,269 | +/-$12,758 | +/-$3,011 |