Sullivan County
New York · County seat: Monticello · Active county or equivalent
FIPS code 36105 is Sullivan County, New York. With a population of 78,725 (2022 ACS estimate), it ranks #34 in New York and #721 nationally. Sullivan County is part of the Monticello, NY. The state FIPS code for New York is 36. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
36105
Population
78,725
2022 ACS · #721 nationally
Density
81.3/mi²
people per sq mile
Land Area
968
sq miles
Urban/Rural
Nonmetro — urban 2.5K–19.9K, adjacent to metro
RUCC 6
How This FIPS Code Works
The 5-digit FIPS code 36105 is formed by combining the 2-digit state identifier 36 (New York) with the 3-digit county identifier 105. Together they uniquely identify Sullivan County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 36105
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 36105.
Median Household Income
$67,841
ACS B19013_001E
Poverty Rate
14.8%
ACS B17001 (below poverty level)
Median Age
41.9
ACS B01002_001E
Metropolitan Area
Adjacent Counties (5)
Counties that share a border with Sullivan County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 36105.
Federal Datasets Using Code 36105
FIPS code 36105 appears as the county identifier in the following federal datasets. Analysts joining data across these sources use this code as the common geographic key.
Using FIPS Code 36105 in Code
Common patterns for querying federal datasets by this county's FIPS code. The leading zeros are significant — always treat FIPS codes as strings, not integers.
import requests
url = "https://api.census.gov/data/2022/acs/acs5"
params = {
"get": "NAME,B19013_001E,B01003_001E",
"for": "county:105",
"in": "state:36",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Sullivan County, New York, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '36105';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '36'
AND county_fips = '105';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 36105 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "36",
county = "105",
year = 2022
)ZIP Codes in Sullivan County
ZIP codes do not align perfectly with county boundaries — a single ZIP code can span multiple counties, and a county can contain parts of many ZIP codes. The ratios below (from the Census 2020 ZCTA relationship file) show the land area share of each ZCTA that falls within Sullivan County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 12777 | 100.0% |
| 12767 | 100.0% |
| 12768 | 100.0% |
| 12769 | 100.0% |
| 12770 | 100.0% |
| 12775 | 100.0% |
| 12778 | 100.0% |
| 12779 | 100.0% |
| 12781 | 100.0% |
| 12783 | 100.0% |
| 12784 | 100.0% |
| 12786 | 100.0% |
| 12787 | 100.0% |
| 12788 | 100.0% |
| 12790 | 100.0% |
| 12791 | 100.0% |
| 12792 | 100.0% |
| 12701 | 100.0% |
| 12719 | 100.0% |
| 12720 | 100.0% |
| 12722 | 100.0% |
| 12723 | 100.0% |
| 12724 | 100.0% |
| 12726 | 100.0% |
| 12732 | 100.0% |
| 12733 | 100.0% |
| 12734 | 100.0% |
| 12736 | 100.0% |
| 12737 | 100.0% |
| 12738 | 100.0% |
Showing top 30 of 62 ZIP codes by residential address share.